/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -i ../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 04:02:39,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 04:02:39,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 04:02:39,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 04:02:39,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 04:02:39,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 04:02:39,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 04:02:39,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 04:02:39,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 04:02:39,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 04:02:39,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 04:02:39,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 04:02:39,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 04:02:39,565 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 04:02:39,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 04:02:39,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 04:02:39,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 04:02:39,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 04:02:39,583 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 04:02:39,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 04:02:39,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 04:02:39,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 04:02:39,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 04:02:39,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 04:02:39,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 04:02:39,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 04:02:39,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 04:02:39,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 04:02:39,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 04:02:39,616 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 04:02:39,616 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 04:02:39,617 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 04:02:39,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 04:02:39,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 04:02:39,622 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 04:02:39,622 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 04:02:39,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 04:02:39,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 04:02:39,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 04:02:39,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 04:02:39,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 04:02:39,628 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2020-11-12 04:02:39,699 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 04:02:39,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 04:02:39,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 04:02:39,712 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 04:02:39,714 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 04:02:39,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 04:02:39,715 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 04:02:39,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 04:02:39,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 04:02:39,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 04:02:39,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 04:02:39,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 04:02:39,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 04:02:39,721 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 04:02:39,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 04:02:39,722 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 04:02:39,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 04:02:39,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 04:02:39,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 04:02:39,723 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 04:02:39,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 04:02:39,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 04:02:39,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 04:02:39,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 04:02:39,725 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 04:02:39,725 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 04:02:39,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 04:02:39,725 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 04:02:39,726 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 04:02:39,726 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 04:02:39,726 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=DELAY_SET 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 04:02:40,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 04:02:40,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 04:02:40,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 04:02:40,327 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 04:02:40,327 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 04:02:40,328 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i [2020-11-12 04:02:40,421 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb9130f50/f01ba8164c5742fb9f0bd8655de0770a/FLAGa25f7768c [2020-11-12 04:02:41,206 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 04:02:41,207 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/17_szymanski.i [2020-11-12 04:02:41,223 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb9130f50/f01ba8164c5742fb9f0bd8655de0770a/FLAGa25f7768c [2020-11-12 04:02:41,431 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb9130f50/f01ba8164c5742fb9f0bd8655de0770a [2020-11-12 04:02:41,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 04:02:41,447 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 04:02:41,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 04:02:41,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 04:02:41,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 04:02:41,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:02:41" (1/1) ... [2020-11-12 04:02:41,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62921138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:41, skipping insertion in model container [2020-11-12 04:02:41,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:02:41" (1/1) ... [2020-11-12 04:02:41,474 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 04:02:41,545 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 04:02:41,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 04:02:41,959 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 04:02:42,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 04:02:42,166 INFO L208 MainTranslator]: Completed translation [2020-11-12 04:02:42,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:42 WrapperNode [2020-11-12 04:02:42,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 04:02:42,168 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 04:02:42,168 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 04:02:42,168 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 04:02:42,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:42" (1/1) ... [2020-11-12 04:02:42,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:42" (1/1) ... [2020-11-12 04:02:42,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 04:02:42,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 04:02:42,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 04:02:42,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 04:02:42,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:42" (1/1) ... [2020-11-12 04:02:42,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:42" (1/1) ... [2020-11-12 04:02:42,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:42" (1/1) ... [2020-11-12 04:02:42,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:42" (1/1) ... [2020-11-12 04:02:42,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:42" (1/1) ... [2020-11-12 04:02:42,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:42" (1/1) ... [2020-11-12 04:02:42,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:42" (1/1) ... [2020-11-12 04:02:42,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 04:02:42,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 04:02:42,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 04:02:42,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 04:02:42,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:42" (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 [2020-11-12 04:02:42,399 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-11-12 04:02:42,400 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-11-12 04:02:42,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 04:02:42,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 04:02:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 04:02:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 04:02:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 04:02:42,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 04:02:42,407 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 04:02:42,901 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 04:02:42,901 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-12 04:02:42,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:02:42 BoogieIcfgContainer [2020-11-12 04:02:42,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 04:02:42,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 04:02:42,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 04:02:42,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 04:02:42,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:02:41" (1/3) ... [2020-11-12 04:02:42,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36da35c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:02:42, skipping insertion in model container [2020-11-12 04:02:42,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:02:42" (2/3) ... [2020-11-12 04:02:42,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36da35c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:02:42, skipping insertion in model container [2020-11-12 04:02:42,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:02:42" (3/3) ... [2020-11-12 04:02:42,917 INFO L111 eAbstractionObserver]: Analyzing ICFG 17_szymanski.i [2020-11-12 04:02:42,939 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 04:02:42,939 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 04:02:42,943 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-12 04:02:42,944 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 04:02:43,002 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,003 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,003 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,003 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,004 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,004 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,004 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,004 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,006 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,006 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,006 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,006 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,008 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,008 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,009 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,009 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,011 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,011 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,011 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,012 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,016 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,016 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,016 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,017 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,017 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,017 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 04:02:43,033 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 04:02:43,050 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-12 04:02:43,092 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 04:02:43,093 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 04:02:43,093 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 04:02:43,094 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 04:02:43,094 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 04:02:43,095 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 04:02:43,095 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 04:02:43,095 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 04:02:43,112 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 74 places, 96 transitions, 197 flow [2020-11-12 04:02:43,193 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 774 states, 770 states have (on average 2.8636363636363638) internal successors, (2205), 773 states have internal predecessors, (2205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 04:02:44,106 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 909ms [2020-11-12 04:02:44,109 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 774 states, 770 states have (on average 2.8636363636363638) internal successors, (2205), 773 states have internal predecessors, (2205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 04:02:44,112 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 774 states, 728 states have (on average 2.098901098901099) internal successors, (1528), 773 states have internal predecessors, (1528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 04:02:44,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 774 states, 728 states have (on average 2.098901098901099) internal successors, (1528), 773 states have internal predecessors, (1528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 04:02:44,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-12 04:02:44,124 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 04:02:44,125 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 04:02:44,126 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 04:02:44,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 04:02:44,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1965527308, now seen corresponding path program 1 times [2020-11-12 04:02:44,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 04:02:44,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530237401] [2020-11-12 04:02:44,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 04:02:44,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 04:02:44,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 04:02:44,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530237401] [2020-11-12 04:02:44,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 04:02:44,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-12 04:02:44,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242748411] [2020-11-12 04:02:44,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-12 04:02:44,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 04:02:44,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-12 04:02:44,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-12 04:02:44,359 INFO L87 Difference]: Start difference. First operand has 774 states, 728 states have (on average 2.098901098901099) internal successors, (1528), 773 states have internal predecessors, (1528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 04:02:44,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 04:02:44,388 INFO L93 Difference]: Finished difference Result 411 states and 810 transitions. [2020-11-12 04:02:44,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-12 04:02:44,389 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2020-11-12 04:02:44,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 04:02:44,409 INFO L225 Difference]: With dead ends: 411 [2020-11-12 04:02:44,409 INFO L226 Difference]: Without dead ends: 411 [2020-11-12 04:02:44,411 INFO L749 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 [2020-11-12 04:02:44,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2020-11-12 04:02:44,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 411. [2020-11-12 04:02:44,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 393 states have (on average 2.0610687022900764) internal successors, (810), 410 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 04:02:44,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 810 transitions. [2020-11-12 04:02:44,497 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 810 transitions. Word has length 28 [2020-11-12 04:02:44,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 04:02:44,497 INFO L481 AbstractCegarLoop]: Abstraction has 411 states and 810 transitions. [2020-11-12 04:02:44,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 04:02:44,498 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 810 transitions. [2020-11-12 04:02:44,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-12 04:02:44,500 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 04:02:44,500 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 04:02:44,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 04:02:44,501 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 04:02:44,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 04:02:44,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1797642954, now seen corresponding path program 1 times [2020-11-12 04:02:44,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 04:02:44,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770402579] [2020-11-12 04:02:44,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 04:02:44,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 04:02:44,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 04:02:44,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770402579] [2020-11-12 04:02:44,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 04:02:44,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-12 04:02:44,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058238245] [2020-11-12 04:02:44,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-12 04:02:44,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 04:02:44,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-12 04:02:44,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-12 04:02:44,595 INFO L87 Difference]: Start difference. First operand 411 states and 810 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 04:02:44,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 04:02:44,627 INFO L93 Difference]: Finished difference Result 622 states and 1307 transitions. [2020-11-12 04:02:44,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-12 04:02:44,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2020-11-12 04:02:44,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 04:02:44,633 INFO L225 Difference]: With dead ends: 622 [2020-11-12 04:02:44,634 INFO L226 Difference]: Without dead ends: 622 [2020-11-12 04:02:44,635 INFO L749 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 [2020-11-12 04:02:44,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2020-11-12 04:02:44,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 417. [2020-11-12 04:02:44,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 399 states have (on average 2.1228070175438596) internal successors, (847), 416 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 04:02:44,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 847 transitions. [2020-11-12 04:02:44,665 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 847 transitions. Word has length 28 [2020-11-12 04:02:44,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 04:02:44,666 INFO L481 AbstractCegarLoop]: Abstraction has 417 states and 847 transitions. [2020-11-12 04:02:44,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 04:02:44,666 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 847 transitions. [2020-11-12 04:02:44,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-12 04:02:44,669 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 04:02:44,669 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 04:02:44,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 04:02:44,670 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 04:02:44,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 04:02:44,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1292248925, now seen corresponding path program 1 times [2020-11-12 04:02:44,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 04:02:44,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130538932] [2020-11-12 04:02:44,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 04:02:44,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 04:02:44,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 04:02:44,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130538932] [2020-11-12 04:02:44,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 04:02:44,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-12 04:02:44,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545088066] [2020-11-12 04:02:44,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-12 04:02:44,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 04:02:44,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-12 04:02:44,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-12 04:02:44,746 INFO L87 Difference]: Start difference. First operand 417 states and 847 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 04:02:44,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 04:02:44,786 INFO L93 Difference]: Finished difference Result 550 states and 1201 transitions. [2020-11-12 04:02:44,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-12 04:02:44,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2020-11-12 04:02:44,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 04:02:44,792 INFO L225 Difference]: With dead ends: 550 [2020-11-12 04:02:44,792 INFO L226 Difference]: Without dead ends: 523 [2020-11-12 04:02:44,794 INFO L749 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 [2020-11-12 04:02:44,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2020-11-12 04:02:44,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 379. [2020-11-12 04:02:44,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 366 states have (on average 2.112021857923497) internal successors, (773), 378 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 04:02:44,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 773 transitions. [2020-11-12 04:02:44,822 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 773 transitions. Word has length 32 [2020-11-12 04:02:44,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 04:02:44,823 INFO L481 AbstractCegarLoop]: Abstraction has 379 states and 773 transitions. [2020-11-12 04:02:44,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 04:02:44,823 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 773 transitions. [2020-11-12 04:02:44,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-12 04:02:44,834 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 04:02:44,835 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 04:02:44,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 04:02:44,835 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 04:02:44,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 04:02:44,837 INFO L82 PathProgramCache]: Analyzing trace with hash -2002684810, now seen corresponding path program 1 times [2020-11-12 04:02:44,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 04:02:44,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552877925] [2020-11-12 04:02:44,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 04:02:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 04:02:44,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 04:02:44,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552877925] [2020-11-12 04:02:44,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 04:02:44,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-12 04:02:44,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197473986] [2020-11-12 04:02:44,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-12 04:02:44,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 04:02:44,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-12 04:02:44,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-12 04:02:44,951 INFO L87 Difference]: Start difference. First operand 379 states and 773 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 04:02:45,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 04:02:45,028 INFO L93 Difference]: Finished difference Result 382 states and 744 transitions. [2020-11-12 04:02:45,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-12 04:02:45,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2020-11-12 04:02:45,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 04:02:45,032 INFO L225 Difference]: With dead ends: 382 [2020-11-12 04:02:45,032 INFO L226 Difference]: Without dead ends: 382 [2020-11-12 04:02:45,033 INFO L749 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 [2020-11-12 04:02:45,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2020-11-12 04:02:45,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 375. [2020-11-12 04:02:45,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 362 states have (on average 2.0248618784530388) internal successors, (733), 374 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 04:02:45,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 733 transitions. [2020-11-12 04:02:45,048 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 733 transitions. Word has length 41 [2020-11-12 04:02:45,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 04:02:45,048 INFO L481 AbstractCegarLoop]: Abstraction has 375 states and 733 transitions. [2020-11-12 04:02:45,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 04:02:45,049 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 733 transitions. [2020-11-12 04:02:45,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-12 04:02:45,050 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 04:02:45,050 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 04:02:45,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 04:02:45,051 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 04:02:45,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 04:02:45,052 INFO L82 PathProgramCache]: Analyzing trace with hash 24608808, now seen corresponding path program 2 times [2020-11-12 04:02:45,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 04:02:45,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419889362] [2020-11-12 04:02:45,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 04:02:45,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 04:02:45,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 04:02:45,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419889362] [2020-11-12 04:02:45,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 04:02:45,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-12 04:02:45,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498420427] [2020-11-12 04:02:45,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-12 04:02:45,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 04:02:45,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-12 04:02:45,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-12 04:02:45,100 INFO L87 Difference]: Start difference. First operand 375 states and 733 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 04:02:45,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 04:02:45,146 INFO L93 Difference]: Finished difference Result 377 states and 726 transitions. [2020-11-12 04:02:45,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-12 04:02:45,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2020-11-12 04:02:45,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 04:02:45,150 INFO L225 Difference]: With dead ends: 377 [2020-11-12 04:02:45,150 INFO L226 Difference]: Without dead ends: 377 [2020-11-12 04:02:45,151 INFO L749 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 [2020-11-12 04:02:45,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2020-11-12 04:02:45,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2020-11-12 04:02:45,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 364 states have (on average 1.9945054945054945) internal successors, (726), 376 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 04:02:45,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 726 transitions. [2020-11-12 04:02:45,165 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 726 transitions. Word has length 41 [2020-11-12 04:02:45,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 04:02:45,165 INFO L481 AbstractCegarLoop]: Abstraction has 377 states and 726 transitions. [2020-11-12 04:02:45,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 04:02:45,166 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 726 transitions. [2020-11-12 04:02:45,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-12 04:02:45,167 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 04:02:45,167 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 04:02:45,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 04:02:45,168 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 04:02:45,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 04:02:45,169 INFO L82 PathProgramCache]: Analyzing trace with hash -297439550, now seen corresponding path program 3 times [2020-11-12 04:02:45,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 04:02:45,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821393070] [2020-11-12 04:02:45,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 04:02:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 04:02:45,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 04:02:45,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821393070] [2020-11-12 04:02:45,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 04:02:45,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-12 04:02:45,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790114998] [2020-11-12 04:02:45,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-12 04:02:45,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 04:02:45,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-12 04:02:45,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-12 04:02:45,213 INFO L87 Difference]: Start difference. First operand 377 states and 726 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 04:02:45,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 04:02:45,255 INFO L93 Difference]: Finished difference Result 288 states and 562 transitions. [2020-11-12 04:02:45,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-12 04:02:45,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2020-11-12 04:02:45,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 04:02:45,257 INFO L225 Difference]: With dead ends: 288 [2020-11-12 04:02:45,257 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 04:02:45,257 INFO L749 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 [2020-11-12 04:02:45,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 04:02:45,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 04:02:45,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 04:02:45,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 04:02:45,258 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2020-11-12 04:02:45,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 04:02:45,259 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 04:02:45,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 04:02:45,259 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 04:02:45,259 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 04:02:45,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 04:02:45,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 04:02:45 BasicIcfg [2020-11-12 04:02:45,265 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 04:02:45,268 INFO L168 Benchmark]: Toolchain (without parser) took 3828.16 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 277.5 MB in the beginning and 304.3 MB in the end (delta: -26.8 MB). Peak memory consumption was 36.3 MB. Max. memory is 16.0 GB. [2020-11-12 04:02:45,269 INFO L168 Benchmark]: CDTParser took 0.79 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 04:02:45,269 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.40 ms. Allocated memory is still 302.0 MB. Free memory was 276.8 MB in the beginning and 248.4 MB in the end (delta: 28.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2020-11-12 04:02:45,270 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.96 ms. Allocated memory is still 302.0 MB. Free memory was 248.4 MB in the beginning and 246.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 04:02:45,271 INFO L168 Benchmark]: Boogie Preprocessor took 58.16 ms. Allocated memory is still 302.0 MB. Free memory was 246.5 MB in the beginning and 244.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 04:02:45,272 INFO L168 Benchmark]: RCFGBuilder took 591.68 ms. Allocated memory is still 302.0 MB. Free memory was 244.9 MB in the beginning and 263.2 MB in the end (delta: -18.3 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2020-11-12 04:02:45,273 INFO L168 Benchmark]: TraceAbstraction took 2359.91 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 263.2 MB in the beginning and 304.3 MB in the end (delta: -41.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.0 GB. [2020-11-12 04:02:45,277 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 714.40 ms. Allocated memory is still 302.0 MB. Free memory was 276.8 MB in the beginning and 248.4 MB in the end (delta: 28.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 83.96 ms. Allocated memory is still 302.0 MB. Free memory was 248.4 MB in the beginning and 246.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 58.16 ms. Allocated memory is still 302.0 MB. Free memory was 246.5 MB in the beginning and 244.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 591.68 ms. Allocated memory is still 302.0 MB. Free memory was 244.9 MB in the beginning and 263.2 MB in the end (delta: -18.3 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2359.91 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 263.2 MB in the beginning and 304.3 MB in the end (delta: -41.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: 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 2 procedures, 71 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 480 SDtfs, 160 SDslu, 221 SDs, 0 SdLazy, 76 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=774occurred 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, 6 MinimizatonAttempts, 356 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 211 NumberOfCodeBlocks, 211 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 205 ConstructedInterpolants, 0 QuantifiedInterpolants, 9175 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...