/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:07:31,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:07:31,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:07:31,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:07:31,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:07:31,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:07:31,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:07:31,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:07:31,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:07:31,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:07:31,662 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:07:31,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:07:31,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:07:31,665 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:07:31,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:07:31,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:07:31,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:07:31,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:07:31,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:07:31,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:07:31,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:07:31,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:07:31,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:07:31,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:07:31,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 17:07:31,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:07:31,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:07:31,750 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:07:31,751 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:07:31,752 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:07:31,752 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:07:31,753 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:07:31,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:07:31,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:07:31,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:07:31,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:07:31,758 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-11-09 17:07:31,821 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:07:31,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:07:31,826 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:07:31,827 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:07:31,827 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:07:31,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:07:31,828 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:07:31,828 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:07:31,828 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:07:31,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:07:31,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:07:31,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:07:31,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:07:31,831 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:07:31,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:07:31,831 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:07:31,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:07:31,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:07:31,832 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:07:31,832 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:07:31,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:07:31,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:07:31,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:07:31,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:07:31,834 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:07:31,834 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:07:31,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:07:31,835 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:07:31,835 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:07:31,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:07:31,836 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:07:32,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:07:32,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:07:32,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:07:32,319 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:07:32,319 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:07:32,320 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.opt.i [2020-11-09 17:07:32,408 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e90754d2/a4600973bd6a4035b903c1319f0dab7d/FLAG53b24ccfc [2020-11-09 17:07:33,201 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:07:33,202 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_pso.opt.i [2020-11-09 17:07:33,224 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e90754d2/a4600973bd6a4035b903c1319f0dab7d/FLAG53b24ccfc [2020-11-09 17:07:33,441 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e90754d2/a4600973bd6a4035b903c1319f0dab7d [2020-11-09 17:07:33,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:07:33,452 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:07:33,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:07:33,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:07:33,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:07:33,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:07:33" (1/1) ... [2020-11-09 17:07:33,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bca9813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:33, skipping insertion in model container [2020-11-09 17:07:33,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:07:33" (1/1) ... [2020-11-09 17:07:33,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:07:33,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:07:33,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:07:33,957 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:07:34,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:07:34,144 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:07:34,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:34 WrapperNode [2020-11-09 17:07:34,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:07:34,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:07:34,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:07:34,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:07:34,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:34" (1/1) ... [2020-11-09 17:07:34,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:34" (1/1) ... [2020-11-09 17:07:34,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:07:34,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:07:34,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:07:34,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:07:34,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:34" (1/1) ... [2020-11-09 17:07:34,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:34" (1/1) ... [2020-11-09 17:07:34,210 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:34" (1/1) ... [2020-11-09 17:07:34,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:34" (1/1) ... [2020-11-09 17:07:34,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:34" (1/1) ... [2020-11-09 17:07:34,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:34" (1/1) ... [2020-11-09 17:07:34,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:34" (1/1) ... [2020-11-09 17:07:34,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:07:34,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:07:34,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:07:34,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:07:34,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:07:34,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:07:34,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 17:07:34,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:07:34,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:07:34,321 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 17:07:34,321 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 17:07:34,322 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 17:07:34,322 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 17:07:34,322 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 17:07:34,322 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 17:07:34,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:07:34,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 17:07:34,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:07:34,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:07:34,325 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 17:07:34,890 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:07:34,891 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 17:07:34,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:07:34 BoogieIcfgContainer [2020-11-09 17:07:34,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:07:34,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:07:34,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:07:34,901 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:07:34,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:07:33" (1/3) ... [2020-11-09 17:07:34,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ffd8d9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:07:34, skipping insertion in model container [2020-11-09 17:07:34,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:34" (2/3) ... [2020-11-09 17:07:34,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ffd8d9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:07:34, skipping insertion in model container [2020-11-09 17:07:34,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:07:34" (3/3) ... [2020-11-09 17:07:34,906 INFO L111 eAbstractionObserver]: Analyzing ICFG safe018_pso.opt.i [2020-11-09 17:07:34,925 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:07:34,925 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:07:34,929 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:07:34,930 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:07:34,980 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:34,980 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:34,981 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:34,981 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:34,981 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:34,981 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:34,982 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:34,982 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:34,982 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:34,982 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,002 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,002 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,004 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,004 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,005 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,005 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,006 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,006 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,006 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,006 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,007 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,008 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,008 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,009 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,010 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,011 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,011 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,011 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,012 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,012 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,013 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,013 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,025 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,026 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,026 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,026 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,034 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,034 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,034 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,038 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,039 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,039 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,039 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:35,043 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:07:35,057 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 17:07:35,098 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:07:35,098 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:07:35,098 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:07:35,099 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:07:35,099 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:07:35,099 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:07:35,099 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:07:35,099 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:07:35,118 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:07:35,118 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 17:07:35,123 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 17:07:35,125 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-11-09 17:07:35,206 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-11-09 17:07:35,206 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 17:07:35,211 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-11-09 17:07:35,214 INFO L116 LiptonReduction]: Number of co-enabled transitions 1348 [2020-11-09 17:07:37,847 WARN L194 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-11-09 17:07:38,061 WARN L194 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-11-09 17:07:38,366 WARN L194 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-11-09 17:07:38,478 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-11-09 17:07:38,706 WARN L194 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-11-09 17:07:38,949 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 17:07:39,064 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 17:07:39,185 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 17:07:39,305 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 17:07:39,313 INFO L131 LiptonReduction]: Checked pairs total: 2462 [2020-11-09 17:07:39,313 INFO L133 LiptonReduction]: Total number of compositions: 71 [2020-11-09 17:07:39,326 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-11-09 17:07:39,377 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 274 states. [2020-11-09 17:07:39,379 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states. [2020-11-09 17:07:39,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 17:07:39,389 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:39,390 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:39,390 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:39,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:39,399 INFO L82 PathProgramCache]: Analyzing trace with hash 911607414, now seen corresponding path program 1 times [2020-11-09 17:07:39,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:39,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576163326] [2020-11-09 17:07:39,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:39,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:39,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576163326] [2020-11-09 17:07:39,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:39,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:07:39,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1652197532] [2020-11-09 17:07:39,728 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:39,736 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:39,750 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 17:07:39,751 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:39,756 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:07:39,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 17:07:39,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:39,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 17:07:39,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 17:07:39,774 INFO L87 Difference]: Start difference. First operand 274 states. Second operand 2 states. [2020-11-09 17:07:39,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:39,800 INFO L93 Difference]: Finished difference Result 274 states and 786 transitions. [2020-11-09 17:07:39,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 17:07:39,802 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-09 17:07:39,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:39,818 INFO L225 Difference]: With dead ends: 274 [2020-11-09 17:07:39,818 INFO L226 Difference]: Without dead ends: 226 [2020-11-09 17:07:39,820 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 17:07:39,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-11-09 17:07:39,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-11-09 17:07:39,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-11-09 17:07:39,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 634 transitions. [2020-11-09 17:07:39,899 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 634 transitions. Word has length 8 [2020-11-09 17:07:39,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:39,901 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 634 transitions. [2020-11-09 17:07:39,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 17:07:39,901 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 634 transitions. [2020-11-09 17:07:39,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 17:07:39,903 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:39,903 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:39,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:07:39,904 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:39,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:39,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1804948320, now seen corresponding path program 1 times [2020-11-09 17:07:39,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:39,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378465029] [2020-11-09 17:07:39,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:40,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:40,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378465029] [2020-11-09 17:07:40,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:40,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:07:40,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1562421247] [2020-11-09 17:07:40,093 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:40,094 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:40,096 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-11-09 17:07:40,096 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:40,097 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:07:40,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:07:40,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:40,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:07:40,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:07:40,100 INFO L87 Difference]: Start difference. First operand 226 states and 634 transitions. Second operand 4 states. [2020-11-09 17:07:40,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:40,135 INFO L93 Difference]: Finished difference Result 250 states and 668 transitions. [2020-11-09 17:07:40,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:07:40,136 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-09 17:07:40,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:40,139 INFO L225 Difference]: With dead ends: 250 [2020-11-09 17:07:40,139 INFO L226 Difference]: Without dead ends: 202 [2020-11-09 17:07:40,140 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:07:40,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-11-09 17:07:40,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-11-09 17:07:40,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-11-09 17:07:40,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 552 transitions. [2020-11-09 17:07:40,168 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 552 transitions. Word has length 9 [2020-11-09 17:07:40,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:40,168 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 552 transitions. [2020-11-09 17:07:40,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:07:40,168 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 552 transitions. [2020-11-09 17:07:40,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 17:07:40,170 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:40,170 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:40,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:07:40,170 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:40,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:40,171 INFO L82 PathProgramCache]: Analyzing trace with hash 834020007, now seen corresponding path program 1 times [2020-11-09 17:07:40,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:40,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869191273] [2020-11-09 17:07:40,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:40,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:40,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869191273] [2020-11-09 17:07:40,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:40,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:07:40,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [147554031] [2020-11-09 17:07:40,264 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:40,265 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:40,267 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 20 transitions. [2020-11-09 17:07:40,267 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:40,332 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:07:40,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:07:40,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:40,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:07:40,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:07:40,338 INFO L87 Difference]: Start difference. First operand 202 states and 552 transitions. Second operand 4 states. [2020-11-09 17:07:40,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:40,365 INFO L93 Difference]: Finished difference Result 220 states and 576 transitions. [2020-11-09 17:07:40,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:07:40,366 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-09 17:07:40,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:40,368 INFO L225 Difference]: With dead ends: 220 [2020-11-09 17:07:40,368 INFO L226 Difference]: Without dead ends: 184 [2020-11-09 17:07:40,369 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:07:40,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-11-09 17:07:40,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2020-11-09 17:07:40,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-11-09 17:07:40,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 492 transitions. [2020-11-09 17:07:40,389 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 492 transitions. Word has length 10 [2020-11-09 17:07:40,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:40,389 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 492 transitions. [2020-11-09 17:07:40,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:07:40,390 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 492 transitions. [2020-11-09 17:07:40,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 17:07:40,392 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:40,392 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:40,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:07:40,392 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:40,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:40,393 INFO L82 PathProgramCache]: Analyzing trace with hash 83805114, now seen corresponding path program 1 times [2020-11-09 17:07:40,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:40,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887096718] [2020-11-09 17:07:40,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:40,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:40,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:40,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887096718] [2020-11-09 17:07:40,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:40,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:07:40,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [147426138] [2020-11-09 17:07:40,500 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:40,504 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:40,506 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 28 transitions. [2020-11-09 17:07:40,507 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:40,635 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:07:40,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:07:40,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:40,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:07:40,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:07:40,641 INFO L87 Difference]: Start difference. First operand 184 states and 492 transitions. Second operand 5 states. [2020-11-09 17:07:40,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:40,712 INFO L93 Difference]: Finished difference Result 241 states and 629 transitions. [2020-11-09 17:07:40,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 17:07:40,716 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-09 17:07:40,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:40,718 INFO L225 Difference]: With dead ends: 241 [2020-11-09 17:07:40,718 INFO L226 Difference]: Without dead ends: 142 [2020-11-09 17:07:40,718 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-09 17:07:40,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-11-09 17:07:40,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2020-11-09 17:07:40,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-11-09 17:07:40,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 354 transitions. [2020-11-09 17:07:40,735 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 354 transitions. Word has length 11 [2020-11-09 17:07:40,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:40,737 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 354 transitions. [2020-11-09 17:07:40,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:07:40,737 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 354 transitions. [2020-11-09 17:07:40,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 17:07:40,741 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:40,741 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:40,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:07:40,742 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:40,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:40,742 INFO L82 PathProgramCache]: Analyzing trace with hash -976750188, now seen corresponding path program 1 times [2020-11-09 17:07:40,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:40,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885338513] [2020-11-09 17:07:40,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:40,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:40,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885338513] [2020-11-09 17:07:40,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:40,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:07:40,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [768621578] [2020-11-09 17:07:40,819 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:40,821 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:40,825 INFO L252 McrAutomatonBuilder]: Finished intersection with 28 states and 46 transitions. [2020-11-09 17:07:40,825 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:40,942 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:07:40,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:07:40,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:40,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:07:40,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:07:40,943 INFO L87 Difference]: Start difference. First operand 142 states and 354 transitions. Second operand 5 states. [2020-11-09 17:07:41,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:41,000 INFO L93 Difference]: Finished difference Result 172 states and 419 transitions. [2020-11-09 17:07:41,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 17:07:41,001 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-09 17:07:41,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:41,002 INFO L225 Difference]: With dead ends: 172 [2020-11-09 17:07:41,002 INFO L226 Difference]: Without dead ends: 76 [2020-11-09 17:07:41,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-09 17:07:41,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-11-09 17:07:41,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-11-09 17:07:41,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-11-09 17:07:41,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 169 transitions. [2020-11-09 17:07:41,006 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 169 transitions. Word has length 12 [2020-11-09 17:07:41,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:41,007 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 169 transitions. [2020-11-09 17:07:41,007 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:07:41,007 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 169 transitions. [2020-11-09 17:07:41,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 17:07:41,009 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:41,011 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:41,011 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 17:07:41,011 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:41,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:41,012 INFO L82 PathProgramCache]: Analyzing trace with hash -254241509, now seen corresponding path program 1 times [2020-11-09 17:07:41,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:41,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851664747] [2020-11-09 17:07:41,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:41,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:41,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851664747] [2020-11-09 17:07:41,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:41,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:07:41,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [28185819] [2020-11-09 17:07:41,159 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:41,162 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:41,165 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 25 transitions. [2020-11-09 17:07:41,166 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:41,224 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:07:41,239 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:07:41,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:07:41,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:41,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:07:41,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:07:41,241 INFO L87 Difference]: Start difference. First operand 76 states and 169 transitions. Second operand 4 states. [2020-11-09 17:07:41,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:41,290 INFO L93 Difference]: Finished difference Result 87 states and 174 transitions. [2020-11-09 17:07:41,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:07:41,290 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-09 17:07:41,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:41,291 INFO L225 Difference]: With dead ends: 87 [2020-11-09 17:07:41,292 INFO L226 Difference]: Without dead ends: 66 [2020-11-09 17:07:41,293 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:07:41,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-11-09 17:07:41,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-11-09 17:07:41,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-11-09 17:07:41,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 133 transitions. [2020-11-09 17:07:41,296 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 133 transitions. Word has length 13 [2020-11-09 17:07:41,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:41,297 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 133 transitions. [2020-11-09 17:07:41,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:07:41,298 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 133 transitions. [2020-11-09 17:07:41,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 17:07:41,299 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:41,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:41,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 17:07:41,299 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:41,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:41,300 INFO L82 PathProgramCache]: Analyzing trace with hash 734665460, now seen corresponding path program 1 times [2020-11-09 17:07:41,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:41,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755211733] [2020-11-09 17:07:41,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:41,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:41,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:41,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755211733] [2020-11-09 17:07:41,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:41,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:07:41,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [531466952] [2020-11-09 17:07:41,404 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:41,405 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:41,412 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 22 transitions. [2020-11-09 17:07:41,413 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:41,442 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3719#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 17:07:41,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 17:07:41,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:41,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 17:07:41,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 17:07:41,443 INFO L87 Difference]: Start difference. First operand 66 states and 133 transitions. Second operand 6 states. [2020-11-09 17:07:41,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:41,505 INFO L93 Difference]: Finished difference Result 62 states and 108 transitions. [2020-11-09 17:07:41,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 17:07:41,505 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-09 17:07:41,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:41,506 INFO L225 Difference]: With dead ends: 62 [2020-11-09 17:07:41,506 INFO L226 Difference]: Without dead ends: 47 [2020-11-09 17:07:41,506 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:07:41,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-09 17:07:41,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-09 17:07:41,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-09 17:07:41,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 78 transitions. [2020-11-09 17:07:41,508 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 78 transitions. Word has length 14 [2020-11-09 17:07:41,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:41,509 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 78 transitions. [2020-11-09 17:07:41,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 17:07:41,509 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 78 transitions. [2020-11-09 17:07:41,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 17:07:41,510 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:41,510 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:41,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 17:07:41,510 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:41,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:41,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1299079363, now seen corresponding path program 1 times [2020-11-09 17:07:41,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:41,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887253694] [2020-11-09 17:07:41,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:41,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:41,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887253694] [2020-11-09 17:07:41,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:41,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 17:07:41,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1166609757] [2020-11-09 17:07:41,611 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:41,615 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:41,619 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 25 transitions. [2020-11-09 17:07:41,619 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:41,638 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:07:41,669 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3884#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 17:07:41,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 17:07:41,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:41,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 17:07:41,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:07:41,671 INFO L87 Difference]: Start difference. First operand 47 states and 78 transitions. Second operand 7 states. [2020-11-09 17:07:41,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:41,727 INFO L93 Difference]: Finished difference Result 40 states and 62 transitions. [2020-11-09 17:07:41,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:07:41,728 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-11-09 17:07:41,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:41,729 INFO L225 Difference]: With dead ends: 40 [2020-11-09 17:07:41,729 INFO L226 Difference]: Without dead ends: 34 [2020-11-09 17:07:41,730 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-09 17:07:41,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-09 17:07:41,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-09 17:07:41,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-09 17:07:41,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 52 transitions. [2020-11-09 17:07:41,733 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 52 transitions. Word has length 15 [2020-11-09 17:07:41,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:41,733 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 52 transitions. [2020-11-09 17:07:41,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 17:07:41,733 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 52 transitions. [2020-11-09 17:07:41,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 17:07:41,734 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:41,734 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:41,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 17:07:41,734 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:41,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:41,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1284707522, now seen corresponding path program 1 times [2020-11-09 17:07:41,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:41,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902257379] [2020-11-09 17:07:41,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:41,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:07:41,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902257379] [2020-11-09 17:07:41,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:41,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:07:41,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [623516633] [2020-11-09 17:07:41,830 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:41,835 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:41,840 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 25 transitions. [2020-11-09 17:07:41,840 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:41,864 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:07:41,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:07:41,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:41,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:07:41,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:07:41,866 INFO L87 Difference]: Start difference. First operand 34 states and 52 transitions. Second operand 5 states. [2020-11-09 17:07:41,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:41,896 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2020-11-09 17:07:41,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:07:41,897 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-09 17:07:41,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:41,897 INFO L225 Difference]: With dead ends: 33 [2020-11-09 17:07:41,897 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 17:07:41,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:07:41,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 17:07:41,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 17:07:41,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 17:07:41,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 17:07:41,898 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-09 17:07:41,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:41,899 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 17:07:41,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:07:41,899 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 17:07:41,899 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 17:07:41,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 17:07:41,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:07:41 BasicIcfg [2020-11-09 17:07:41,904 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:07:41,906 INFO L168 Benchmark]: Toolchain (without parser) took 8458.40 ms. Allocated memory was 157.3 MB in the beginning and 238.0 MB in the end (delta: 80.7 MB). Free memory was 137.3 MB in the beginning and 139.1 MB in the end (delta: -1.7 MB). Peak memory consumption was 78.7 MB. Max. memory is 8.0 GB. [2020-11-09 17:07:41,906 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 157.3 MB. Free memory is still 129.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:07:41,908 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.88 ms. Allocated memory is still 157.3 MB. Free memory was 136.7 MB in the beginning and 120.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.7 MB. Max. memory is 8.0 GB. [2020-11-09 17:07:41,909 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.24 ms. Allocated memory is still 157.3 MB. Free memory was 120.7 MB in the beginning and 118.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:07:41,916 INFO L168 Benchmark]: Boogie Preprocessor took 30.80 ms. Allocated memory is still 157.3 MB. Free memory was 118.6 MB in the beginning and 117.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:07:41,917 INFO L168 Benchmark]: RCFGBuilder took 666.29 ms. Allocated memory is still 157.3 MB. Free memory was 117.2 MB in the beginning and 95.5 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:07:41,921 INFO L168 Benchmark]: TraceAbstraction took 7007.02 ms. Allocated memory was 157.3 MB in the beginning and 238.0 MB in the end (delta: 80.7 MB). Free memory was 95.2 MB in the beginning and 139.1 MB in the end (delta: -43.9 MB). Peak memory consumption was 37.9 MB. Max. memory is 8.0 GB. [2020-11-09 17:07:41,927 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 ms. Allocated memory is still 157.3 MB. Free memory is still 129.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 689.88 ms. Allocated memory is still 157.3 MB. Free memory was 136.7 MB in the beginning and 120.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 49.24 ms. Allocated memory is still 157.3 MB. Free memory was 120.7 MB in the beginning and 118.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.80 ms. Allocated memory is still 157.3 MB. Free memory was 118.6 MB in the beginning and 117.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 666.29 ms. Allocated memory is still 157.3 MB. Free memory was 117.2 MB in the beginning and 95.5 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7007.02 ms. Allocated memory was 157.3 MB in the beginning and 238.0 MB in the end (delta: 80.7 MB). Free memory was 95.2 MB in the beginning and 139.1 MB in the end (delta: -43.9 MB). Peak memory consumption was 37.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 736 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 46 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.1s, 85 PlacesBefore, 31 PlacesAfterwards, 78 TransitionsBefore, 22 TransitionsAfterwards, 1348 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 71 TotalNumberOfCompositions, 2462 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.8s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, HoareTripleCheckerStatistics: 171 SDtfs, 162 SDslu, 266 SDs, 0 SdLazy, 132 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 3684 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...