/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 15:36:01,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 15:36:01,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 15:36:01,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-10 15:36:01,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 15:36:01,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 15:36:01,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 15:36:01,945 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.epf [2021-03-10 15:36:01,980 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 15:36:01,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 15:36:01,981 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 15:36:01,981 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 15:36:01,983 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 15:36:01,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 15:36:01,984 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 15:36:01,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 15:36:01,984 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 15:36:01,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 15:36:01,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 15:36:01,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 15:36:01,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 15:36:01,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 15:36:01,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 15:36:01,986 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 15:36:01,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 15:36:01,986 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 15:36:01,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 15:36:01,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 15:36:01,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 15:36:01,987 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 15:36:01,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 15:36:01,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 15:36:01,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 15:36:01,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 15:36:01,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 15:36:01,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 15:36:01,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 15:36:01,988 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 15:36:01,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 15:36:01,989 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 15:36:02,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 15:36:02,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 15:36:02,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 15:36:02,309 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 15:36:02,309 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 15:36:02,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i [2021-03-10 15:36:02,373 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb4b7aecd/c536ab3aeaff40c18edb66ae39d3c782/FLAGe8849176f [2021-03-10 15:36:02,852 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 15:36:02,853 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/17_szymanski.i [2021-03-10 15:36:02,863 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb4b7aecd/c536ab3aeaff40c18edb66ae39d3c782/FLAGe8849176f [2021-03-10 15:36:03,346 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb4b7aecd/c536ab3aeaff40c18edb66ae39d3c782 [2021-03-10 15:36:03,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 15:36:03,355 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 15:36:03,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 15:36:03,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 15:36:03,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 15:36:03,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 03:36:03" (1/1) ... [2021-03-10 15:36:03,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bb9b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:36:03, skipping insertion in model container [2021-03-10 15:36:03,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 03:36:03" (1/1) ... [2021-03-10 15:36:03,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 15:36:03,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 15:36:03,654 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/17_szymanski.i[30132,30145] [2021-03-10 15:36:03,659 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/17_szymanski.i[30481,30494] [2021-03-10 15:36:03,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 15:36:03,669 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 15:36:03,696 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/17_szymanski.i[30132,30145] [2021-03-10 15:36:03,698 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/17_szymanski.i[30481,30494] [2021-03-10 15:36:03,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 15:36:03,755 INFO L208 MainTranslator]: Completed translation [2021-03-10 15:36:03,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:36:03 WrapperNode [2021-03-10 15:36:03,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 15:36:03,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 15:36:03,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 15:36:03,757 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 15:36:03,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:36:03" (1/1) ... [2021-03-10 15:36:03,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:36:03" (1/1) ... [2021-03-10 15:36:03,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 15:36:03,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 15:36:03,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 15:36:03,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 15:36:03,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:36:03" (1/1) ... [2021-03-10 15:36:03,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:36:03" (1/1) ... [2021-03-10 15:36:03,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:36:03" (1/1) ... [2021-03-10 15:36:03,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:36:03" (1/1) ... [2021-03-10 15:36:03,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:36:03" (1/1) ... [2021-03-10 15:36:03,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:36:03" (1/1) ... [2021-03-10 15:36:03,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:36:03" (1/1) ... [2021-03-10 15:36:03,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 15:36:03,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 15:36:03,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 15:36:03,811 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 15:36:03,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:36:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 15:36:03,870 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-03-10 15:36:03,871 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-03-10 15:36:03,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 15:36:03,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 15:36:03,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 15:36:03,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-10 15:36:03,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 15:36:03,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 15:36:03,875 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 15:36:04,289 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 15:36:04,290 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-03-10 15:36:04,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 03:36:04 BoogieIcfgContainer [2021-03-10 15:36:04,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 15:36:04,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 15:36:04,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 15:36:04,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 15:36:04,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 03:36:03" (1/3) ... [2021-03-10 15:36:04,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b188d33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 03:36:04, skipping insertion in model container [2021-03-10 15:36:04,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:36:03" (2/3) ... [2021-03-10 15:36:04,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b188d33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 03:36:04, skipping insertion in model container [2021-03-10 15:36:04,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 03:36:04" (3/3) ... [2021-03-10 15:36:04,298 INFO L111 eAbstractionObserver]: Analyzing ICFG 17_szymanski.i [2021-03-10 15:36:04,303 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 15:36:04,303 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 15:36:04,306 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-10 15:36:04,307 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 15:36:04,335 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:36:04,335 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:36:04,335 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:36:04,335 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:36:04,336 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:36:04,336 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:36:04,336 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:36:04,336 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:36:04,336 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:36:04,336 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:36:04,337 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:36:04,337 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:36:04,339 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:36:04,339 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:36:04,339 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:36:04,340 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:36:04,344 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-10 15:36:04,359 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-10 15:36:04,374 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 15:36:04,375 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 15:36:04,375 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 15:36:04,375 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 15:36:04,375 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 15:36:04,375 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 15:36:04,375 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 15:36:04,375 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 15:36:04,384 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 88 transitions, 181 flow [2021-03-10 15:36:04,421 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 615 states, 611 states have (on average 2.888707037643208) internal successors, (1765), 614 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:36:04,426 INFO L276 IsEmpty]: Start isEmpty. Operand has 615 states, 611 states have (on average 2.888707037643208) internal successors, (1765), 614 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:36:04,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-03-10 15:36:04,435 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:36:04,436 INFO L519 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] [2021-03-10 15:36:04,436 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 15:36:04,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:36:04,443 INFO L82 PathProgramCache]: Analyzing trace with hash -441178988, now seen corresponding path program 1 times [2021-03-10 15:36:04,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:36:04,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782968921] [2021-03-10 15:36:04,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:36:04,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:36:04,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:36:04,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782968921] [2021-03-10 15:36:04,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:36:04,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-10 15:36:04,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624808619] [2021-03-10 15:36:04,635 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-03-10 15:36:04,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:36:04,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-03-10 15:36:04,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-10 15:36:04,656 INFO L87 Difference]: Start difference. First operand has 615 states, 611 states have (on average 2.888707037643208) internal successors, (1765), 614 states have internal predecessors, (1765), 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 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:36:04,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:36:04,679 INFO L93 Difference]: Finished difference Result 335 states and 835 transitions. [2021-03-10 15:36:04,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-10 15:36:04,680 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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 26 [2021-03-10 15:36:04,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:36:04,692 INFO L225 Difference]: With dead ends: 335 [2021-03-10 15:36:04,692 INFO L226 Difference]: Without dead ends: 335 [2021-03-10 15:36:04,693 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-10 15:36:04,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2021-03-10 15:36:04,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2021-03-10 15:36:04,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 334 states have (on average 2.5) internal successors, (835), 334 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:36:04,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 835 transitions. [2021-03-10 15:36:04,750 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 835 transitions. Word has length 26 [2021-03-10 15:36:04,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:36:04,751 INFO L480 AbstractCegarLoop]: Abstraction has 335 states and 835 transitions. [2021-03-10 15:36:04,751 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:36:04,751 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 835 transitions. [2021-03-10 15:36:04,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-03-10 15:36:04,752 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:36:04,752 INFO L519 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] [2021-03-10 15:36:04,753 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 15:36:04,753 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 15:36:04,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:36:04,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1301661138, now seen corresponding path program 1 times [2021-03-10 15:36:04,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:36:04,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848751706] [2021-03-10 15:36:04,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:36:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:36:04,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:36:04,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848751706] [2021-03-10 15:36:04,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:36:04,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-10 15:36:04,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362293525] [2021-03-10 15:36:04,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-10 15:36:04,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:36:04,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-10 15:36:04,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 15:36:04,821 INFO L87 Difference]: Start difference. First operand 335 states and 835 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:36:04,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:36:04,847 INFO L93 Difference]: Finished difference Result 530 states and 1356 transitions. [2021-03-10 15:36:04,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-10 15:36:04,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2021-03-10 15:36:04,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:36:04,852 INFO L225 Difference]: With dead ends: 530 [2021-03-10 15:36:04,852 INFO L226 Difference]: Without dead ends: 530 [2021-03-10 15:36:04,852 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 15:36:04,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2021-03-10 15:36:04,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 352. [2021-03-10 15:36:04,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 351 states have (on average 2.5014245014245016) internal successors, (878), 351 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:36:04,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 878 transitions. [2021-03-10 15:36:04,884 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 878 transitions. Word has length 26 [2021-03-10 15:36:04,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:36:04,885 INFO L480 AbstractCegarLoop]: Abstraction has 352 states and 878 transitions. [2021-03-10 15:36:04,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:36:04,885 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 878 transitions. [2021-03-10 15:36:04,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-03-10 15:36:04,886 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:36:04,887 INFO L519 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] [2021-03-10 15:36:04,887 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 15:36:04,887 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 15:36:04,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:36:04,888 INFO L82 PathProgramCache]: Analyzing trace with hash -714082165, now seen corresponding path program 1 times [2021-03-10 15:36:04,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:36:04,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451359924] [2021-03-10 15:36:04,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:36:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:36:04,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:36:04,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451359924] [2021-03-10 15:36:04,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:36:04,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-10 15:36:04,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654435162] [2021-03-10 15:36:04,930 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-10 15:36:04,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:36:04,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-10 15:36:04,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 15:36:04,931 INFO L87 Difference]: Start difference. First operand 352 states and 878 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:36:04,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:36:04,965 INFO L93 Difference]: Finished difference Result 498 states and 1269 transitions. [2021-03-10 15:36:04,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-10 15:36:04,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 30 [2021-03-10 15:36:04,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:36:04,969 INFO L225 Difference]: With dead ends: 498 [2021-03-10 15:36:04,970 INFO L226 Difference]: Without dead ends: 498 [2021-03-10 15:36:04,970 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 15:36:04,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2021-03-10 15:36:05,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 344. [2021-03-10 15:36:05,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 344 states have (on average 2.433139534883721) internal successors, (837), 343 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:36:05,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 837 transitions. [2021-03-10 15:36:05,010 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 837 transitions. Word has length 30 [2021-03-10 15:36:05,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:36:05,010 INFO L480 AbstractCegarLoop]: Abstraction has 344 states and 837 transitions. [2021-03-10 15:36:05,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:36:05,010 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 837 transitions. [2021-03-10 15:36:05,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-03-10 15:36:05,013 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:36:05,013 INFO L519 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] [2021-03-10 15:36:05,013 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 15:36:05,013 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 15:36:05,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:36:05,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1394585400, now seen corresponding path program 1 times [2021-03-10 15:36:05,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:36:05,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324997203] [2021-03-10 15:36:05,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:36:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:36:05,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:36:05,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324997203] [2021-03-10 15:36:05,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:36:05,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-10 15:36:05,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443688075] [2021-03-10 15:36:05,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-10 15:36:05,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:36:05,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-10 15:36:05,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 15:36:05,112 INFO L87 Difference]: Start difference. First operand 344 states and 837 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:36:05,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:36:05,150 INFO L93 Difference]: Finished difference Result 341 states and 804 transitions. [2021-03-10 15:36:05,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-10 15:36:05,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2021-03-10 15:36:05,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:36:05,156 INFO L225 Difference]: With dead ends: 341 [2021-03-10 15:36:05,156 INFO L226 Difference]: Without dead ends: 341 [2021-03-10 15:36:05,156 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 15:36:05,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2021-03-10 15:36:05,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2021-03-10 15:36:05,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 341 states have (on average 2.3577712609970676) internal successors, (804), 340 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:36:05,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 804 transitions. [2021-03-10 15:36:05,166 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 804 transitions. Word has length 39 [2021-03-10 15:36:05,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:36:05,166 INFO L480 AbstractCegarLoop]: Abstraction has 341 states and 804 transitions. [2021-03-10 15:36:05,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:36:05,167 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 804 transitions. [2021-03-10 15:36:05,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-03-10 15:36:05,169 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:36:05,169 INFO L519 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] [2021-03-10 15:36:05,169 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-10 15:36:05,169 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 15:36:05,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:36:05,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1008491444, now seen corresponding path program 1 times [2021-03-10 15:36:05,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:36:05,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148319843] [2021-03-10 15:36:05,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:36:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:36:05,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:36:05,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148319843] [2021-03-10 15:36:05,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:36:05,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-10 15:36:05,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047247423] [2021-03-10 15:36:05,202 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-10 15:36:05,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:36:05,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-10 15:36:05,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 15:36:05,203 INFO L87 Difference]: Start difference. First operand 341 states and 804 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:36:05,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:36:05,285 INFO L93 Difference]: Finished difference Result 368 states and 855 transitions. [2021-03-10 15:36:05,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-10 15:36:05,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2021-03-10 15:36:05,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:36:05,287 INFO L225 Difference]: With dead ends: 368 [2021-03-10 15:36:05,288 INFO L226 Difference]: Without dead ends: 368 [2021-03-10 15:36:05,288 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 15:36:05,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2021-03-10 15:36:05,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 357. [2021-03-10 15:36:05,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 357 states have (on average 2.327731092436975) internal successors, (831), 356 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:36:05,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 831 transitions. [2021-03-10 15:36:05,312 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 831 transitions. Word has length 39 [2021-03-10 15:36:05,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:36:05,313 INFO L480 AbstractCegarLoop]: Abstraction has 357 states and 831 transitions. [2021-03-10 15:36:05,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:36:05,313 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 831 transitions. [2021-03-10 15:36:05,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-03-10 15:36:05,315 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:36:05,315 INFO L519 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] [2021-03-10 15:36:05,315 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-10 15:36:05,315 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 15:36:05,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:36:05,316 INFO L82 PathProgramCache]: Analyzing trace with hash 2024588916, now seen corresponding path program 2 times [2021-03-10 15:36:05,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:36:05,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362141356] [2021-03-10 15:36:05,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:36:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:36:05,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:36:05,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362141356] [2021-03-10 15:36:05,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:36:05,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-10 15:36:05,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553763076] [2021-03-10 15:36:05,384 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-10 15:36:05,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:36:05,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-10 15:36:05,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 15:36:05,385 INFO L87 Difference]: Start difference. First operand 357 states and 831 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:36:05,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:36:05,439 INFO L93 Difference]: Finished difference Result 357 states and 819 transitions. [2021-03-10 15:36:05,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-10 15:36:05,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2021-03-10 15:36:05,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:36:05,442 INFO L225 Difference]: With dead ends: 357 [2021-03-10 15:36:05,442 INFO L226 Difference]: Without dead ends: 357 [2021-03-10 15:36:05,442 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 15:36:05,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2021-03-10 15:36:05,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2021-03-10 15:36:05,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 357 states have (on average 2.2941176470588234) internal successors, (819), 356 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:36:05,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 819 transitions. [2021-03-10 15:36:05,452 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 819 transitions. Word has length 39 [2021-03-10 15:36:05,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:36:05,452 INFO L480 AbstractCegarLoop]: Abstraction has 357 states and 819 transitions. [2021-03-10 15:36:05,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:36:05,453 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 819 transitions. [2021-03-10 15:36:05,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-03-10 15:36:05,454 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:36:05,454 INFO L519 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] [2021-03-10 15:36:05,454 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-10 15:36:05,454 INFO L428 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 15:36:05,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:36:05,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1328817126, now seen corresponding path program 3 times [2021-03-10 15:36:05,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:36:05,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086700204] [2021-03-10 15:36:05,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:36:05,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:36:05,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:36:05,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086700204] [2021-03-10 15:36:05,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:36:05,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-10 15:36:05,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293174490] [2021-03-10 15:36:05,516 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-10 15:36:05,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:36:05,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-10 15:36:05,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 15:36:05,517 INFO L87 Difference]: Start difference. First operand 357 states and 819 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:36:05,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:36:05,576 INFO L93 Difference]: Finished difference Result 312 states and 709 transitions. [2021-03-10 15:36:05,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-10 15:36:05,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2021-03-10 15:36:05,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:36:05,577 INFO L225 Difference]: With dead ends: 312 [2021-03-10 15:36:05,577 INFO L226 Difference]: Without dead ends: 0 [2021-03-10 15:36:05,578 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 15:36:05,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-10 15:36:05,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-10 15:36:05,578 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) [2021-03-10 15:36:05,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-10 15:36:05,578 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2021-03-10 15:36:05,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:36:05,578 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-10 15:36:05,579 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:36:05,579 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-10 15:36:05,579 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-10 15:36:05,579 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-10 15:36:05,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 03:36:05 BasicIcfg [2021-03-10 15:36:05,583 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 15:36:05,584 INFO L168 Benchmark]: Toolchain (without parser) took 2234.43 ms. Allocated memory was 255.9 MB in the beginning and 352.3 MB in the end (delta: 96.5 MB). Free memory was 235.5 MB in the beginning and 271.6 MB in the end (delta: -36.1 MB). Peak memory consumption was 58.8 MB. Max. memory is 16.0 GB. [2021-03-10 15:36:05,584 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 15:36:05,585 INFO L168 Benchmark]: CACSL2BoogieTranslator took 399.77 ms. Allocated memory was 255.9 MB in the beginning and 352.3 MB in the end (delta: 96.5 MB). Free memory was 234.6 MB in the beginning and 317.6 MB in the end (delta: -83.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-10 15:36:05,585 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.67 ms. Allocated memory is still 352.3 MB. Free memory was 317.6 MB in the beginning and 315.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 15:36:05,585 INFO L168 Benchmark]: Boogie Preprocessor took 20.79 ms. Allocated memory is still 352.3 MB. Free memory was 315.5 MB in the beginning and 314.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 15:36:05,586 INFO L168 Benchmark]: RCFGBuilder took 481.09 ms. Allocated memory is still 352.3 MB. Free memory was 314.3 MB in the beginning and 330.5 MB in the end (delta: -16.1 MB). Peak memory consumption was 22.4 MB. Max. memory is 16.0 GB. [2021-03-10 15:36:05,586 INFO L168 Benchmark]: TraceAbstraction took 1289.76 ms. Allocated memory is still 352.3 MB. Free memory was 330.5 MB in the beginning and 271.6 MB in the end (delta: 58.9 MB). Peak memory consumption was 58.2 MB. Max. memory is 16.0 GB. [2021-03-10 15:36:05,588 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 399.77 ms. Allocated memory was 255.9 MB in the beginning and 352.3 MB in the end (delta: 96.5 MB). Free memory was 234.6 MB in the beginning and 317.6 MB in the end (delta: -83.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 31.67 ms. Allocated memory is still 352.3 MB. Free memory was 317.6 MB in the beginning and 315.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 20.79 ms. Allocated memory is still 352.3 MB. Free memory was 315.5 MB in the beginning and 314.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 481.09 ms. Allocated memory is still 352.3 MB. Free memory was 314.3 MB in the beginning and 330.5 MB in the end (delta: -16.1 MB). Peak memory consumption was 22.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1289.76 ms. Allocated memory is still 352.3 MB. Free memory was 330.5 MB in the beginning and 271.6 MB in the end (delta: 58.9 MB). Peak memory consumption was 58.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 698]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 716]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 65 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1206.9ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 23.6ms, AutomataDifference: 379.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 46.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 542 SDtfs, 190 SDslu, 245 SDs, 0 SdLazy, 96 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 174.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=615occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 161.5ms AutomataMinimizationTime, 7 MinimizatonAttempts, 343 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 24.5ms SsaConstructionTime, 96.3ms SatisfiabilityAnalysisTime, 308.1ms InterpolantComputationTime, 238 NumberOfCodeBlocks, 238 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 231 ConstructedInterpolants, 0 QuantifiedInterpolants, 283 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...