/usr/bin/java -Xmx8000000000 -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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:00:29,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:00:29,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:00:29,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:00:29,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:00:29,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:00:29,743 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:00:29,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:00:29,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:00:29,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:00:29,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:00:29,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:00:29,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:00:29,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:00:29,755 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:00:29,756 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:00:29,757 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:00:29,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:00:29,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:00:29,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:00:29,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:00:29,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:00:29,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:00:29,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:00:29,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 17:00:29,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:00:29,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:00:29,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:00:29,823 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:00:29,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:00:29,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:00:29,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:00:29,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:00:29,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:00:29,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:00:29,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:00:29,828 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-11-09 17:00:29,888 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:00:29,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:00:29,893 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:00:29,893 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:00:29,893 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:00:29,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:00:29,894 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:00:29,894 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:00:29,894 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:00:29,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:00:29,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:00:29,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:00:29,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:00:29,896 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:00:29,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:00:29,896 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:00:29,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:00:29,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:00:29,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:00:29,897 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:00:29,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:00:29,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:00:29,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:00:29,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:00:29,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:00:29,898 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:00:29,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:00:29,898 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:00:29,899 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:00:29,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:00:29,900 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:00:30,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:00:30,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:00:30,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:00:30,324 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:00:30,324 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:00:30,325 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2020-11-09 17:00:30,418 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0603a6e03/5526f9f0974946fa878cf66228c9b8b5/FLAGd8d689b4e [2020-11-09 17:00:31,265 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:00:31,267 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2020-11-09 17:00:31,288 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0603a6e03/5526f9f0974946fa878cf66228c9b8b5/FLAGd8d689b4e [2020-11-09 17:00:31,516 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0603a6e03/5526f9f0974946fa878cf66228c9b8b5 [2020-11-09 17:00:31,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:00:31,526 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:00:31,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:00:31,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:00:31,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:00:31,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:00:31" (1/1) ... [2020-11-09 17:00:31,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3faf5dcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:31, skipping insertion in model container [2020-11-09 17:00:31,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:00:31" (1/1) ... [2020-11-09 17:00:31,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:00:31,620 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:00:32,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:00:32,087 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:00:32,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:00:32,283 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:00:32,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:32 WrapperNode [2020-11-09 17:00:32,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:00:32,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:00:32,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:00:32,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:00:32,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:32" (1/1) ... [2020-11-09 17:00:32,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:32" (1/1) ... [2020-11-09 17:00:32,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:00:32,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:00:32,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:00:32,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:00:32,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:32" (1/1) ... [2020-11-09 17:00:32,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:32" (1/1) ... [2020-11-09 17:00:32,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:32" (1/1) ... [2020-11-09 17:00:32,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:32" (1/1) ... [2020-11-09 17:00:32,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:32" (1/1) ... [2020-11-09 17:00:32,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:32" (1/1) ... [2020-11-09 17:00:32,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:32" (1/1) ... [2020-11-09 17:00:32,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:00:32,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:00:32,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:00:32,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:00:32,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:32" (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 [2020-11-09 17:00:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:00:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 17:00:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:00:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:00:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 17:00:32,448 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 17:00:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 17:00:32,449 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 17:00:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 17:00:32,449 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 17:00:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:00:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 17:00:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:00:32,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:00:32,451 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 17:00:33,015 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:00:33,016 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 17:00:33,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:00:33 BoogieIcfgContainer [2020-11-09 17:00:33,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:00:33,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:00:33,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:00:33,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:00:33,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:00:31" (1/3) ... [2020-11-09 17:00:33,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a40ac8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:00:33, skipping insertion in model container [2020-11-09 17:00:33,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:32" (2/3) ... [2020-11-09 17:00:33,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a40ac8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:00:33, skipping insertion in model container [2020-11-09 17:00:33,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:00:33" (3/3) ... [2020-11-09 17:00:33,031 INFO L111 eAbstractionObserver]: Analyzing ICFG safe002_tso.opt.i [2020-11-09 17:00:33,048 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:00:33,048 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:00:33,052 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:00:33,053 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:00:33,107 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,107 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,108 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,108 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,108 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,108 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,108 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,109 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,110 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,110 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,110 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,110 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,111 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,111 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,111 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,111 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,111 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,112 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,112 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,112 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,112 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,113 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,113 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,114 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,114 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,114 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,114 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,115 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,115 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,115 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,118 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,118 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,118 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,119 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,125 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,125 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,126 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,126 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,129 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,129 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,129 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,130 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:00:33,132 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:00:33,146 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 17:00:33,170 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:00:33,171 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:00:33,171 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:00:33,171 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:00:33,171 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:00:33,171 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:00:33,171 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:00:33,171 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:00:33,185 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:00:33,185 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 17:00:33,189 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 17:00:33,191 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-11-09 17:00:33,237 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-11-09 17:00:33,238 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 17:00:33,242 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 17:00:33,246 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 17:00:33,800 WARN L194 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-11-09 17:00:37,328 WARN L194 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 17:00:37,451 WARN L194 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 17:00:37,701 WARN L194 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 17:00:37,826 WARN L194 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 17:00:37,852 INFO L131 LiptonReduction]: Checked pairs total: 2779 [2020-11-09 17:00:37,853 INFO L133 LiptonReduction]: Total number of compositions: 70 [2020-11-09 17:00:37,860 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-11-09 17:00:37,890 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-11-09 17:00:37,892 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-11-09 17:00:37,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 17:00:37,900 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:00:37,900 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:00:37,901 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:00:37,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:00:37,907 INFO L82 PathProgramCache]: Analyzing trace with hash -460323677, now seen corresponding path program 1 times [2020-11-09 17:00:37,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:00:37,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070479510] [2020-11-09 17:00:37,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:00:38,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:00:38,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:00:38,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070479510] [2020-11-09 17:00:38,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:00:38,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:00:38,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [838077366] [2020-11-09 17:00:38,136 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:00:38,140 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:00:38,156 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 17:00:38,156 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:00:38,162 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:00:38,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 17:00:38,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:00:38,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 17:00:38,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 17:00:38,189 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-11-09 17:00:38,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:00:38,233 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-11-09 17:00:38,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 17:00:38,237 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-09 17:00:38,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:00:38,261 INFO L225 Difference]: With dead ends: 362 [2020-11-09 17:00:38,262 INFO L226 Difference]: Without dead ends: 298 [2020-11-09 17:00:38,263 INFO L677 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 [2020-11-09 17:00:38,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-11-09 17:00:38,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-11-09 17:00:38,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-11-09 17:00:38,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-11-09 17:00:38,350 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-11-09 17:00:38,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:00:38,352 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-11-09 17:00:38,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 17:00:38,352 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-11-09 17:00:38,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 17:00:38,355 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:00:38,355 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:00:38,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:00:38,355 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:00:38,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:00:38,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1385173359, now seen corresponding path program 1 times [2020-11-09 17:00:38,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:00:38,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638003244] [2020-11-09 17:00:38,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:00:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:00:38,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:00:38,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638003244] [2020-11-09 17:00:38,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:00:38,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:00:38,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [439603971] [2020-11-09 17:00:38,514 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:00:38,515 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:00:38,517 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-11-09 17:00:38,517 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:00:38,517 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:00:38,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:00:38,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:00:38,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:00:38,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:00:38,520 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-11-09 17:00:38,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:00:38,573 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-11-09 17:00:38,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:00:38,574 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-09 17:00:38,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:00:38,577 INFO L225 Difference]: With dead ends: 330 [2020-11-09 17:00:38,577 INFO L226 Difference]: Without dead ends: 266 [2020-11-09 17:00:38,578 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:00:38,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-11-09 17:00:38,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-11-09 17:00:38,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-11-09 17:00:38,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-11-09 17:00:38,617 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-11-09 17:00:38,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:00:38,619 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-11-09 17:00:38,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:00:38,619 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-11-09 17:00:38,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 17:00:38,621 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:00:38,622 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:00:38,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:00:38,622 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:00:38,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:00:38,623 INFO L82 PathProgramCache]: Analyzing trace with hash 585999155, now seen corresponding path program 1 times [2020-11-09 17:00:38,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:00:38,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149678364] [2020-11-09 17:00:38,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:00:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:00:38,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:00:38,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149678364] [2020-11-09 17:00:38,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:00:38,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:00:38,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [66356760] [2020-11-09 17:00:38,762 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:00:38,763 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:00:38,765 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 20 transitions. [2020-11-09 17:00:38,765 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:00:38,844 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:00:38,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:00:38,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:00:38,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:00:38,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:00:38,846 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-11-09 17:00:38,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:00:38,960 INFO L93 Difference]: Finished difference Result 374 states and 1022 transitions. [2020-11-09 17:00:38,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 17:00:38,961 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-09 17:00:38,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:00:38,963 INFO L225 Difference]: With dead ends: 374 [2020-11-09 17:00:38,963 INFO L226 Difference]: Without dead ends: 200 [2020-11-09 17:00:38,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-09 17:00:38,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-11-09 17:00:38,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2020-11-09 17:00:38,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-11-09 17:00:38,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 532 transitions. [2020-11-09 17:00:38,974 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 532 transitions. Word has length 10 [2020-11-09 17:00:38,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:00:38,974 INFO L481 AbstractCegarLoop]: Abstraction has 200 states and 532 transitions. [2020-11-09 17:00:38,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:00:38,975 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 532 transitions. [2020-11-09 17:00:38,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 17:00:38,976 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:00:38,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:00:38,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:00:38,977 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:00:38,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:00:38,977 INFO L82 PathProgramCache]: Analyzing trace with hash 176770060, now seen corresponding path program 1 times [2020-11-09 17:00:38,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:00:38,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918161226] [2020-11-09 17:00:38,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:00:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:00:39,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:00:39,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918161226] [2020-11-09 17:00:39,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:00:39,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:00:39,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [571790250] [2020-11-09 17:00:39,048 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:00:39,050 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:00:39,053 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 30 transitions. [2020-11-09 17:00:39,053 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:00:39,091 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:00:39,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:00:39,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:00:39,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:00:39,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:00:39,092 INFO L87 Difference]: Start difference. First operand 200 states and 532 transitions. Second operand 4 states. [2020-11-09 17:00:39,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:00:39,146 INFO L93 Difference]: Finished difference Result 268 states and 670 transitions. [2020-11-09 17:00:39,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:00:39,147 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-09 17:00:39,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:00:39,149 INFO L225 Difference]: With dead ends: 268 [2020-11-09 17:00:39,149 INFO L226 Difference]: Without dead ends: 200 [2020-11-09 17:00:39,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:00:39,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-11-09 17:00:39,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 176. [2020-11-09 17:00:39,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-11-09 17:00:39,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 440 transitions. [2020-11-09 17:00:39,156 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 440 transitions. Word has length 12 [2020-11-09 17:00:39,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:00:39,157 INFO L481 AbstractCegarLoop]: Abstraction has 176 states and 440 transitions. [2020-11-09 17:00:39,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:00:39,157 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 440 transitions. [2020-11-09 17:00:39,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 17:00:39,158 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:00:39,159 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:00:39,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:00:39,159 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:00:39,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:00:39,159 INFO L82 PathProgramCache]: Analyzing trace with hash 229025079, now seen corresponding path program 1 times [2020-11-09 17:00:39,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:00:39,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225635637] [2020-11-09 17:00:39,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:00:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:00:39,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:00:39,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225635637] [2020-11-09 17:00:39,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:00:39,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:00:39,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1461440714] [2020-11-09 17:00:39,240 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:00:39,241 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:00:39,244 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 18 transitions. [2020-11-09 17:00:39,244 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:00:39,258 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:00:39,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:00:39,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:00:39,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:00:39,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:00:39,260 INFO L87 Difference]: Start difference. First operand 176 states and 440 transitions. Second operand 5 states. [2020-11-09 17:00:39,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:00:39,347 INFO L93 Difference]: Finished difference Result 224 states and 550 transitions. [2020-11-09 17:00:39,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:00:39,348 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-09 17:00:39,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:00:39,350 INFO L225 Difference]: With dead ends: 224 [2020-11-09 17:00:39,350 INFO L226 Difference]: Without dead ends: 116 [2020-11-09 17:00:39,351 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:00:39,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-11-09 17:00:39,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-11-09 17:00:39,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-11-09 17:00:39,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 278 transitions. [2020-11-09 17:00:39,356 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 278 transitions. Word has length 12 [2020-11-09 17:00:39,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:00:39,357 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 278 transitions. [2020-11-09 17:00:39,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:00:39,357 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 278 transitions. [2020-11-09 17:00:39,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 17:00:39,359 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:00:39,359 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:00:39,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 17:00:39,359 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:00:39,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:00:39,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1926444660, now seen corresponding path program 1 times [2020-11-09 17:00:39,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:00:39,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959187203] [2020-11-09 17:00:39,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:00:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:00:39,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:00:39,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959187203] [2020-11-09 17:00:39,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:00:39,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:00:39,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [862447725] [2020-11-09 17:00:39,476 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:00:39,478 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:00:39,483 INFO L252 McrAutomatonBuilder]: Finished intersection with 28 states and 41 transitions. [2020-11-09 17:00:39,483 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:00:39,544 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:00:39,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:00:39,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:00:39,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:00:39,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:00:39,545 INFO L87 Difference]: Start difference. First operand 116 states and 278 transitions. Second operand 5 states. [2020-11-09 17:00:39,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:00:39,613 INFO L93 Difference]: Finished difference Result 152 states and 362 transitions. [2020-11-09 17:00:39,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 17:00:39,614 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-09 17:00:39,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:00:39,615 INFO L225 Difference]: With dead ends: 152 [2020-11-09 17:00:39,615 INFO L226 Difference]: Without dead ends: 80 [2020-11-09 17:00:39,615 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:00:39,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-11-09 17:00:39,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-11-09 17:00:39,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-11-09 17:00:39,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 176 transitions. [2020-11-09 17:00:39,619 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 176 transitions. Word has length 14 [2020-11-09 17:00:39,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:00:39,620 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 176 transitions. [2020-11-09 17:00:39,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:00:39,620 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 176 transitions. [2020-11-09 17:00:39,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 17:00:39,621 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:00:39,621 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:00:39,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 17:00:39,621 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:00:39,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:00:39,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1405608924, now seen corresponding path program 2 times [2020-11-09 17:00:39,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:00:39,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164005300] [2020-11-09 17:00:39,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:00:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:00:39,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:00:39,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164005300] [2020-11-09 17:00:39,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:00:39,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:00:39,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [82987945] [2020-11-09 17:00:39,689 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:00:39,691 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:00:39,696 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 32 transitions. [2020-11-09 17:00:39,696 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:00:39,709 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-09 17:00:39,710 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 17:00:39,730 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-09 17:00:39,731 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 17:00:39,741 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-09 17:00:39,742 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 17:00:39,759 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-09 17:00:39,761 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 17:00:39,795 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4843#(not (= 3 ~__unbuffered_cnt~0))] [2020-11-09 17:00:39,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:00:39,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:00:39,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:00:39,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:00:39,797 INFO L87 Difference]: Start difference. First operand 80 states and 176 transitions. Second operand 5 states. [2020-11-09 17:00:39,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:00:39,852 INFO L93 Difference]: Finished difference Result 72 states and 135 transitions. [2020-11-09 17:00:39,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:00:39,853 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-09 17:00:39,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:00:39,853 INFO L225 Difference]: With dead ends: 72 [2020-11-09 17:00:39,854 INFO L226 Difference]: Without dead ends: 50 [2020-11-09 17:00:39,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:00:39,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-11-09 17:00:39,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-11-09 17:00:39,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-11-09 17:00:39,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 83 transitions. [2020-11-09 17:00:39,856 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 83 transitions. Word has length 14 [2020-11-09 17:00:39,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:00:39,857 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 83 transitions. [2020-11-09 17:00:39,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:00:39,857 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 83 transitions. [2020-11-09 17:00:39,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-09 17:00:39,857 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:00:39,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:00:39,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 17:00:39,858 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:00:39,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:00:39,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1628487690, now seen corresponding path program 1 times [2020-11-09 17:00:39,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:00:39,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503614257] [2020-11-09 17:00:39,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:00:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:00:39,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:00:39,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503614257] [2020-11-09 17:00:39,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:00:39,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 17:00:39,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [626532361] [2020-11-09 17:00:39,968 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:00:39,970 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:00:39,975 INFO L252 McrAutomatonBuilder]: Finished intersection with 28 states and 38 transitions. [2020-11-09 17:00:39,975 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:00:39,984 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-09 17:00:39,985 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 17:00:40,060 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [5026#(not (= 3 ~__unbuffered_cnt~0)), 5027#(not (= ~__unbuffered_cnt~0 2)), 5028#(not (= ~__unbuffered_cnt~0 1)), 5029#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 17:00:40,060 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-09 17:00:40,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:00:40,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-09 17:00:40,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-11-09 17:00:40,061 INFO L87 Difference]: Start difference. First operand 50 states and 83 transitions. Second operand 10 states. [2020-11-09 17:00:40,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:00:40,129 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2020-11-09 17:00:40,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 17:00:40,129 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-11-09 17:00:40,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:00:40,130 INFO L225 Difference]: With dead ends: 43 [2020-11-09 17:00:40,130 INFO L226 Difference]: Without dead ends: 37 [2020-11-09 17:00:40,131 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-11-09 17:00:40,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-09 17:00:40,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-09 17:00:40,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-09 17:00:40,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-11-09 17:00:40,133 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 16 [2020-11-09 17:00:40,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:00:40,134 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-11-09 17:00:40,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-09 17:00:40,134 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-11-09 17:00:40,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 17:00:40,134 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:00:40,134 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:00:40,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 17:00:40,135 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:00:40,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:00:40,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1397206146, now seen corresponding path program 1 times [2020-11-09 17:00:40,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:00:40,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167671821] [2020-11-09 17:00:40,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:00:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:00:40,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:00:40,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167671821] [2020-11-09 17:00:40,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:00:40,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-09 17:00:40,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [538515796] [2020-11-09 17:00:40,283 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:00:40,286 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:00:40,293 INFO L252 McrAutomatonBuilder]: Finished intersection with 31 states and 42 transitions. [2020-11-09 17:00:40,293 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:00:40,410 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [5163#(and (= ~__unbuffered_p0_EBX~0 1) (<= 1 ~__unbuffered_cnt~0) (<= ~__unbuffered_cnt~0 1)), 5164#(and (= ~__unbuffered_p0_EBX~0 1) (<= ~__unbuffered_cnt~0 0) (<= 0 ~__unbuffered_cnt~0))] [2020-11-09 17:00:40,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-09 17:00:40,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:00:40,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-09 17:00:40,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-11-09 17:00:40,411 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 12 states. [2020-11-09 17:00:40,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:00:40,653 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-11-09 17:00:40,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-09 17:00:40,654 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 18 [2020-11-09 17:00:40,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:00:40,654 INFO L225 Difference]: With dead ends: 36 [2020-11-09 17:00:40,654 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 17:00:40,655 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-11-09 17:00:40,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 17:00:40,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 17:00:40,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 17:00:40,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 17:00:40,656 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-11-09 17:00:40,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:00:40,656 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 17:00:40,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-09 17:00:40,656 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 17:00:40,657 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 17:00:40,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 17:00:40,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:00:40 BasicIcfg [2020-11-09 17:00:40,661 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:00:40,663 INFO L168 Benchmark]: Toolchain (without parser) took 9141.61 ms. Allocated memory was 151.0 MB in the beginning and 228.6 MB in the end (delta: 77.6 MB). Free memory was 125.1 MB in the beginning and 191.6 MB in the end (delta: -66.5 MB). Peak memory consumption was 11.8 MB. Max. memory is 8.0 GB. [2020-11-09 17:00:40,663 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:00:40,664 INFO L168 Benchmark]: CACSL2BoogieTranslator took 756.98 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 126.4 MB in the end (delta: -1.9 MB). Peak memory consumption was 27.8 MB. Max. memory is 8.0 GB. [2020-11-09 17:00:40,665 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.40 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 124.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:00:40,671 INFO L168 Benchmark]: Boogie Preprocessor took 28.28 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 122.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:00:40,671 INFO L168 Benchmark]: RCFGBuilder took 655.07 ms. Allocated memory is still 151.0 MB. Free memory was 122.7 MB in the beginning and 101.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:00:40,675 INFO L168 Benchmark]: TraceAbstraction took 7637.90 ms. Allocated memory was 151.0 MB in the beginning and 228.6 MB in the end (delta: 77.6 MB). Free memory was 100.7 MB in the beginning and 191.6 MB in the end (delta: -91.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:00:40,686 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 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 756.98 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 126.4 MB in the end (delta: -1.9 MB). Peak memory consumption was 27.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 50.40 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 124.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 28.28 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 122.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 655.07 ms. Allocated memory is still 151.0 MB. Free memory was 122.7 MB in the beginning and 101.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7637.90 ms. Allocated memory was 151.0 MB in the beginning and 228.6 MB in the end (delta: 77.6 MB). Free memory was 100.7 MB in the beginning and 191.6 MB in the end (delta: -91.0 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 756 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 40 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.6s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 70 TotalNumberOfCompositions, 2779 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.4s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, HoareTripleCheckerStatistics: 192 SDtfs, 228 SDslu, 357 SDs, 0 SdLazy, 232 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 54 SyntacticMatches, 8 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 9 MinimizatonAttempts, 24 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 4941 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...