/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 12:11:12,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 12:11:12,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 12:11:12,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 12:11:12,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 12:11:12,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 12:11:12,528 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 12:11:12,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 12:11:12,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 12:11:12,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 12:11:12,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 12:11:12,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 12:11:12,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 12:11:12,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 12:11:12,556 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 12:11:12,561 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 12:11:12,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 12:11:12,567 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 12:11:12,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 12:11:12,599 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 12:11:12,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 12:11:12,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 12:11:12,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 12:11:12,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 12:11:12,613 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 12:11:12,618 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 12:11:12,619 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 12:11:12,621 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 12:11:12,621 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 12:11:12,622 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 12:11:12,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 12:11:12,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 12:11:12,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 12:11:12,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 12:11:12,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 12:11:12,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 12:11:12,626 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-09 12:11:12,681 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 12:11:12,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 12:11:12,685 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 12:11:12,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 12:11:12,686 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 12:11:12,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 12:11:12,686 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 12:11:12,687 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 12:11:12,687 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 12:11:12,687 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 12:11:12,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 12:11:12,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 12:11:12,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 12:11:12,689 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 12:11:12,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 12:11:12,689 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 12:11:12,689 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 12:11:12,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 12:11:12,690 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 12:11:12,690 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 12:11:12,690 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 12:11:12,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 12:11:12,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 12:11:12,691 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-09 12:11:12,691 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 12:11:12,691 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 12:11:12,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 12:11:12,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 12:11:12,692 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-09 12:11:12,692 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 12:11:13,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 12:11:13,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 12:11:13,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 12:11:13,158 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 12:11:13,159 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 12:11:13,160 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i [2020-11-09 12:11:13,264 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60a87b089/8a12b49a35f34886aadf21d41e19a63e/FLAG32843636c [2020-11-09 12:11:13,966 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 12:11:13,966 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/17_szymanski.i [2020-11-09 12:11:13,982 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60a87b089/8a12b49a35f34886aadf21d41e19a63e/FLAG32843636c [2020-11-09 12:11:14,257 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60a87b089/8a12b49a35f34886aadf21d41e19a63e [2020-11-09 12:11:14,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 12:11:14,270 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 12:11:14,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 12:11:14,273 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 12:11:14,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 12:11:14,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:11:14" (1/1) ... [2020-11-09 12:11:14,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6adb393c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:14, skipping insertion in model container [2020-11-09 12:11:14,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:11:14" (1/1) ... [2020-11-09 12:11:14,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 12:11:14,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 12:11:14,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:11:14,836 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 12:11:14,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:11:15,011 INFO L208 MainTranslator]: Completed translation [2020-11-09 12:11:15,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:15 WrapperNode [2020-11-09 12:11:15,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 12:11:15,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 12:11:15,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 12:11:15,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 12:11:15,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:15" (1/1) ... [2020-11-09 12:11:15,086 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:15" (1/1) ... [2020-11-09 12:11:15,147 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 12:11:15,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 12:11:15,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 12:11:15,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 12:11:15,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:15" (1/1) ... [2020-11-09 12:11:15,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:15" (1/1) ... [2020-11-09 12:11:15,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:15" (1/1) ... [2020-11-09 12:11:15,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:15" (1/1) ... [2020-11-09 12:11:15,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:15" (1/1) ... [2020-11-09 12:11:15,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:15" (1/1) ... [2020-11-09 12:11:15,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:15" (1/1) ... [2020-11-09 12:11:15,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 12:11:15,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 12:11:15,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 12:11:15,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 12:11:15,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:15" (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 12:11:15,303 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-11-09 12:11:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-11-09 12:11:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 12:11:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 12:11:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 12:11:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 12:11:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 12:11:15,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 12:11:15,307 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 12:11:15,816 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 12:11:15,817 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-09 12:11:15,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:11:15 BoogieIcfgContainer [2020-11-09 12:11:15,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 12:11:15,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 12:11:15,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 12:11:15,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 12:11:15,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:11:14" (1/3) ... [2020-11-09 12:11:15,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b84c91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:11:15, skipping insertion in model container [2020-11-09 12:11:15,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:15" (2/3) ... [2020-11-09 12:11:15,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b84c91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:11:15, skipping insertion in model container [2020-11-09 12:11:15,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:11:15" (3/3) ... [2020-11-09 12:11:15,828 INFO L111 eAbstractionObserver]: Analyzing ICFG 17_szymanski.i [2020-11-09 12:11:15,846 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 12:11:15,846 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-09 12:11:15,850 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-09 12:11:15,851 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 12:11:15,884 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,884 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,885 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,885 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,885 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,885 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,886 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,886 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,886 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,886 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,886 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,887 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,888 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,888 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,888 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,888 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,889 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,889 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,890 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,890 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,892 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,893 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,893 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,893 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,893 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,893 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:11:15,899 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 12:11:15,913 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 12:11:15,938 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 12:11:15,939 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 12:11:15,939 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-09 12:11:15,939 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 12:11:15,939 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 12:11:15,939 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 12:11:15,939 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 12:11:15,940 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 12:11:15,953 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-09 12:11:15,956 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 96 transitions, 197 flow [2020-11-09 12:11:15,959 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 96 transitions, 197 flow [2020-11-09 12:11:15,961 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 96 transitions, 197 flow [2020-11-09 12:11:16,012 INFO L129 PetriNetUnfolder]: 26/95 cut-off events. [2020-11-09 12:11:16,012 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 12:11:16,019 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 95 events. 26/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 155 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 80. Up to 3 conditions per place. [2020-11-09 12:11:16,027 INFO L116 LiptonReduction]: Number of co-enabled transitions 3150 [2020-11-09 12:11:17,991 WARN L194 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2020-11-09 12:11:18,297 WARN L194 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2020-11-09 12:11:18,418 INFO L131 LiptonReduction]: Checked pairs total: 5734 [2020-11-09 12:11:18,419 INFO L133 LiptonReduction]: Total number of compositions: 63 [2020-11-09 12:11:18,425 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 51 transitions, 107 flow [2020-11-09 12:11:18,446 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 227 states. [2020-11-09 12:11:18,448 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states. [2020-11-09 12:11:18,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 12:11:18,458 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:11:18,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:11:18,459 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:11:18,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:11:18,466 INFO L82 PathProgramCache]: Analyzing trace with hash 556857473, now seen corresponding path program 1 times [2020-11-09 12:11:18,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:11:18,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014552277] [2020-11-09 12:11:18,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:11:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:11:18,647 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 12:11:18,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014552277] [2020-11-09 12:11:18,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:11:18,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:11:18,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995929639] [2020-11-09 12:11:18,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 12:11:18,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:11:18,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 12:11:18,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 12:11:18,677 INFO L87 Difference]: Start difference. First operand 227 states. Second operand 2 states. [2020-11-09 12:11:18,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:11:18,707 INFO L93 Difference]: Finished difference Result 198 states and 534 transitions. [2020-11-09 12:11:18,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 12:11:18,708 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-09 12:11:18,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:11:18,725 INFO L225 Difference]: With dead ends: 198 [2020-11-09 12:11:18,725 INFO L226 Difference]: Without dead ends: 198 [2020-11-09 12:11:18,727 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 12:11:18,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-11-09 12:11:18,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-11-09 12:11:18,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-11-09 12:11:18,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 534 transitions. [2020-11-09 12:11:18,791 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 534 transitions. Word has length 9 [2020-11-09 12:11:18,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:11:18,791 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 534 transitions. [2020-11-09 12:11:18,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 12:11:18,791 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 534 transitions. [2020-11-09 12:11:18,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 12:11:18,793 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:11:18,793 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:11:18,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 12:11:18,794 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:11:18,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:11:18,795 INFO L82 PathProgramCache]: Analyzing trace with hash -265870444, now seen corresponding path program 1 times [2020-11-09 12:11:18,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:11:18,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808894701] [2020-11-09 12:11:18,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:11:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:11:18,869 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 12:11:18,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808894701] [2020-11-09 12:11:18,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:11:18,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:11:18,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877009640] [2020-11-09 12:11:18,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:11:18,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:11:18,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:11:18,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:11:18,874 INFO L87 Difference]: Start difference. First operand 198 states and 534 transitions. Second operand 3 states. [2020-11-09 12:11:18,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:11:18,967 INFO L93 Difference]: Finished difference Result 362 states and 979 transitions. [2020-11-09 12:11:18,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:11:18,968 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-09 12:11:18,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:11:18,976 INFO L225 Difference]: With dead ends: 362 [2020-11-09 12:11:18,976 INFO L226 Difference]: Without dead ends: 362 [2020-11-09 12:11:18,977 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:11:18,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-11-09 12:11:19,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 221. [2020-11-09 12:11:19,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-11-09 12:11:19,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 589 transitions. [2020-11-09 12:11:19,052 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 589 transitions. Word has length 11 [2020-11-09 12:11:19,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:11:19,053 INFO L481 AbstractCegarLoop]: Abstraction has 221 states and 589 transitions. [2020-11-09 12:11:19,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:11:19,053 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 589 transitions. [2020-11-09 12:11:19,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 12:11:19,055 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:11:19,055 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:11:19,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 12:11:19,057 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:11:19,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:11:19,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1897023782, now seen corresponding path program 1 times [2020-11-09 12:11:19,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:11:19,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768506340] [2020-11-09 12:11:19,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:11:19,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:11:19,160 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 12:11:19,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768506340] [2020-11-09 12:11:19,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:11:19,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:11:19,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888045915] [2020-11-09 12:11:19,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:11:19,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:11:19,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:11:19,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:11:19,165 INFO L87 Difference]: Start difference. First operand 221 states and 589 transitions. Second operand 3 states. [2020-11-09 12:11:19,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:11:19,195 INFO L93 Difference]: Finished difference Result 348 states and 934 transitions. [2020-11-09 12:11:19,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:11:19,195 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-09 12:11:19,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:11:19,199 INFO L225 Difference]: With dead ends: 348 [2020-11-09 12:11:19,199 INFO L226 Difference]: Without dead ends: 348 [2020-11-09 12:11:19,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:11:19,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-11-09 12:11:19,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 218. [2020-11-09 12:11:19,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-11-09 12:11:19,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 560 transitions. [2020-11-09 12:11:19,214 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 560 transitions. Word has length 11 [2020-11-09 12:11:19,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:11:19,214 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 560 transitions. [2020-11-09 12:11:19,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:11:19,214 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 560 transitions. [2020-11-09 12:11:19,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 12:11:19,217 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:11:19,217 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:11:19,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 12:11:19,217 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:11:19,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:11:19,218 INFO L82 PathProgramCache]: Analyzing trace with hash -293575379, now seen corresponding path program 1 times [2020-11-09 12:11:19,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:11:19,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322557300] [2020-11-09 12:11:19,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:11:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:11:19,259 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 12:11:19,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322557300] [2020-11-09 12:11:19,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:11:19,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:11:19,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868913019] [2020-11-09 12:11:19,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:11:19,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:11:19,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:11:19,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:11:19,262 INFO L87 Difference]: Start difference. First operand 218 states and 560 transitions. Second operand 3 states. [2020-11-09 12:11:19,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:11:19,356 INFO L93 Difference]: Finished difference Result 234 states and 577 transitions. [2020-11-09 12:11:19,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:11:19,358 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-09 12:11:19,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:11:19,360 INFO L225 Difference]: With dead ends: 234 [2020-11-09 12:11:19,361 INFO L226 Difference]: Without dead ends: 234 [2020-11-09 12:11:19,361 INFO L677 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 [2020-11-09 12:11:19,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-11-09 12:11:19,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 230. [2020-11-09 12:11:19,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-11-09 12:11:19,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 569 transitions. [2020-11-09 12:11:19,379 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 569 transitions. Word has length 19 [2020-11-09 12:11:19,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:11:19,384 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 569 transitions. [2020-11-09 12:11:19,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:11:19,384 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 569 transitions. [2020-11-09 12:11:19,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 12:11:19,390 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:11:19,390 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:11:19,391 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 12:11:19,391 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:11:19,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:11:19,392 INFO L82 PathProgramCache]: Analyzing trace with hash -369860675, now seen corresponding path program 2 times [2020-11-09 12:11:19,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:11:19,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706404508] [2020-11-09 12:11:19,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:11:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:11:19,482 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 12:11:19,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706404508] [2020-11-09 12:11:19,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:11:19,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:11:19,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255563862] [2020-11-09 12:11:19,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:11:19,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:11:19,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:11:19,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:11:19,485 INFO L87 Difference]: Start difference. First operand 230 states and 569 transitions. Second operand 3 states. [2020-11-09 12:11:19,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:11:19,545 INFO L93 Difference]: Finished difference Result 228 states and 553 transitions. [2020-11-09 12:11:19,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:11:19,546 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-09 12:11:19,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:11:19,549 INFO L225 Difference]: With dead ends: 228 [2020-11-09 12:11:19,549 INFO L226 Difference]: Without dead ends: 228 [2020-11-09 12:11:19,550 INFO L677 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 [2020-11-09 12:11:19,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-11-09 12:11:19,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2020-11-09 12:11:19,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-11-09 12:11:19,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 553 transitions. [2020-11-09 12:11:19,559 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 553 transitions. Word has length 19 [2020-11-09 12:11:19,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:11:19,559 INFO L481 AbstractCegarLoop]: Abstraction has 228 states and 553 transitions. [2020-11-09 12:11:19,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:11:19,559 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 553 transitions. [2020-11-09 12:11:19,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 12:11:19,561 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:11:19,561 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:11:19,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 12:11:19,561 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:11:19,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:11:19,562 INFO L82 PathProgramCache]: Analyzing trace with hash -520856579, now seen corresponding path program 3 times [2020-11-09 12:11:19,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:11:19,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498731282] [2020-11-09 12:11:19,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:11:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:11:19,598 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 12:11:19,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498731282] [2020-11-09 12:11:19,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:11:19,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:11:19,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182044573] [2020-11-09 12:11:19,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:11:19,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:11:19,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:11:19,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:11:19,601 INFO L87 Difference]: Start difference. First operand 228 states and 553 transitions. Second operand 3 states. [2020-11-09 12:11:19,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:11:19,641 INFO L93 Difference]: Finished difference Result 194 states and 463 transitions. [2020-11-09 12:11:19,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:11:19,642 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-09 12:11:19,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:11:19,642 INFO L225 Difference]: With dead ends: 194 [2020-11-09 12:11:19,642 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 12:11:19,643 INFO L677 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 [2020-11-09 12:11:19,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 12:11:19,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 12:11:19,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 12:11:19,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 12:11:19,644 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-11-09 12:11:19,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:11:19,644 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 12:11:19,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:11:19,644 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 12:11:19,644 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 12:11:19,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 12:11:19,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 12:11:19 BasicIcfg [2020-11-09 12:11:19,648 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 12:11:19,650 INFO L168 Benchmark]: Toolchain (without parser) took 5385.66 ms. Allocated memory was 157.3 MB in the beginning and 200.3 MB in the end (delta: 43.0 MB). Free memory was 132.0 MB in the beginning and 133.0 MB in the end (delta: -969.0 kB). Peak memory consumption was 42.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:11:19,651 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 157.3 MB. Free memory is still 129.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:11:19,651 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.93 ms. Allocated memory is still 157.3 MB. Free memory was 131.4 MB in the beginning and 102.5 MB in the end (delta: 28.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. [2020-11-09 12:11:19,652 INFO L168 Benchmark]: Boogie Procedure Inliner took 134.58 ms. Allocated memory is still 157.3 MB. Free memory was 102.5 MB in the beginning and 139.4 MB in the end (delta: -37.0 MB). Peak memory consumption was 3.2 MB. Max. memory is 8.0 GB. [2020-11-09 12:11:19,653 INFO L168 Benchmark]: Boogie Preprocessor took 69.51 ms. Allocated memory is still 157.3 MB. Free memory was 139.4 MB in the beginning and 138.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:11:19,654 INFO L168 Benchmark]: RCFGBuilder took 599.47 ms. Allocated memory is still 157.3 MB. Free memory was 137.9 MB in the beginning and 115.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:11:19,655 INFO L168 Benchmark]: TraceAbstraction took 3827.47 ms. Allocated memory was 157.3 MB in the beginning and 200.3 MB in the end (delta: 43.0 MB). Free memory was 115.3 MB in the beginning and 133.0 MB in the end (delta: -17.7 MB). Peak memory consumption was 26.4 MB. Max. memory is 8.0 GB. [2020-11-09 12:11:19,659 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 157.3 MB. Free memory is still 129.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 738.93 ms. Allocated memory is still 157.3 MB. Free memory was 131.4 MB in the beginning and 102.5 MB in the end (delta: 28.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 134.58 ms. Allocated memory is still 157.3 MB. Free memory was 102.5 MB in the beginning and 139.4 MB in the end (delta: -37.0 MB). Peak memory consumption was 3.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 69.51 ms. Allocated memory is still 157.3 MB. Free memory was 139.4 MB in the beginning and 138.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 599.47 ms. Allocated memory is still 157.3 MB. Free memory was 137.9 MB in the beginning and 115.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3827.47 ms. Allocated memory was 157.3 MB in the beginning and 200.3 MB in the end (delta: 43.0 MB). Free memory was 115.3 MB in the beginning and 133.0 MB in the end (delta: -17.7 MB). Peak memory consumption was 26.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1482 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 16 SemBasedMoverChecksPositive, 22 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 107 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.4s, 74 PlacesBefore, 35 PlacesAfterwards, 96 TransitionsBefore, 51 TransitionsAfterwards, 3150 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 6 ChoiceCompositions, 63 TotalNumberOfCompositions, 5734 MoverChecksTotal - 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: 3.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 314 SDtfs, 133 SDslu, 117 SDs, 0 SdLazy, 76 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=230occurred in iteration=4, 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, 275 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 1600 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...