/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-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 15:32:17,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 15:32:17,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 15:32:17,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 15:32:17,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 15:32:17,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 15:32:17,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 15:32:17,182 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 15:32:17,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 15:32:17,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 15:32:17,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 15:32:17,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 15:32:17,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 15:32:17,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 15:32:17,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 15:32:17,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 15:32:17,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 15:32:17,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 15:32:17,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 15:32:17,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 15:32:17,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 15:32:17,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 15:32:17,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 15:32:17,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 15:32:17,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 15:32:17,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 15:32:17,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 15:32:17,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 15:32:17,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 15:32:17,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 15:32:17,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 15:32:17,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 15:32:17,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 15:32:17,263 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 15:32:17,264 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 15:32:17,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 15:32:17,266 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-WP.epf [2020-11-09 15:32:17,331 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 15:32:17,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 15:32:17,336 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 15:32:17,336 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 15:32:17,336 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 15:32:17,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 15:32:17,337 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 15:32:17,337 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 15:32:17,337 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 15:32:17,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 15:32:17,339 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 15:32:17,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 15:32:17,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 15:32:17,340 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 15:32:17,340 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 15:32:17,340 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 15:32:17,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 15:32:17,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 15:32:17,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 15:32:17,341 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 15:32:17,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 15:32:17,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:32:17,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 15:32:17,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 15:32:17,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 15:32:17,342 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 15:32:17,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 15:32:17,343 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 15:32:17,343 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 15:32:17,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 15:32:17,343 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 15:32:17,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 15:32:17,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 15:32:17,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 15:32:17,806 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 15:32:17,807 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 15:32:17,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2020-11-09 15:32:17,899 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5184b13ee/2ba0e1bfb1b84d90bb5e57eb4dc554b4/FLAG9beaaf27b [2020-11-09 15:32:18,654 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 15:32:18,657 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2020-11-09 15:32:18,686 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5184b13ee/2ba0e1bfb1b84d90bb5e57eb4dc554b4/FLAG9beaaf27b [2020-11-09 15:32:18,944 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5184b13ee/2ba0e1bfb1b84d90bb5e57eb4dc554b4 [2020-11-09 15:32:18,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 15:32:18,955 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 15:32:18,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 15:32:18,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 15:32:18,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 15:32:18,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:32:18" (1/1) ... [2020-11-09 15:32:18,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72d21968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:18, skipping insertion in model container [2020-11-09 15:32:18,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:32:18" (1/1) ... [2020-11-09 15:32:18,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 15:32:19,017 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 15:32:19,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:32:19,474 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 15:32:19,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:32:19,715 INFO L208 MainTranslator]: Completed translation [2020-11-09 15:32:19,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19 WrapperNode [2020-11-09 15:32:19,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 15:32:19,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 15:32:19,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 15:32:19,729 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 15:32:19,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19" (1/1) ... [2020-11-09 15:32:19,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19" (1/1) ... [2020-11-09 15:32:19,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 15:32:19,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 15:32:19,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 15:32:19,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 15:32:19,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19" (1/1) ... [2020-11-09 15:32:19,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19" (1/1) ... [2020-11-09 15:32:19,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19" (1/1) ... [2020-11-09 15:32:19,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19" (1/1) ... [2020-11-09 15:32:19,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19" (1/1) ... [2020-11-09 15:32:19,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19" (1/1) ... [2020-11-09 15:32:19,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19" (1/1) ... [2020-11-09 15:32:19,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 15:32:19,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 15:32:19,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 15:32:19,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 15:32:19,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19" (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 15:32:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 15:32:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 15:32:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 15:32:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 15:32:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 15:32:19,896 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 15:32:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 15:32:19,896 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 15:32:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 15:32:19,897 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 15:32:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 15:32:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 15:32:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 15:32:19,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 15:32:19,899 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 15:32:20,330 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 15:32:20,330 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 15:32:20,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:32:20 BoogieIcfgContainer [2020-11-09 15:32:20,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 15:32:20,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 15:32:20,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 15:32:20,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 15:32:20,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:32:18" (1/3) ... [2020-11-09 15:32:20,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1572b403 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:32:20, skipping insertion in model container [2020-11-09 15:32:20,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19" (2/3) ... [2020-11-09 15:32:20,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1572b403 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:32:20, skipping insertion in model container [2020-11-09 15:32:20,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:32:20" (3/3) ... [2020-11-09 15:32:20,342 INFO L111 eAbstractionObserver]: Analyzing ICFG safe002_tso.opt.i [2020-11-09 15:32:20,361 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 15:32:20,361 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 15:32:20,365 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 15:32:20,366 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 15:32:20,403 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,403 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,403 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,403 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,404 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,404 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,404 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,404 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,405 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,405 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,405 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,405 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,406 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,406 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,406 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,406 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,406 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,407 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,407 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,407 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,407 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,408 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,408 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,408 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,409 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,409 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,409 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,409 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,409 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,409 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,410 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,410 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,410 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,411 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,411 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,411 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,415 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,415 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,415 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,415 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,427 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,427 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,427 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,427 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,431 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,431 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,432 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,432 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:20,436 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 15:32:20,448 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 15:32:20,468 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 15:32:20,468 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 15:32:20,468 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 15:32:20,468 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 15:32:20,469 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 15:32:20,469 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 15:32:20,469 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 15:32:20,469 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 15:32:20,483 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 15:32:20,484 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 15:32:20,487 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 15:32:20,489 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-11-09 15:32:20,542 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-11-09 15:32:20,542 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 15:32:20,547 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 15:32:20,550 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 15:32:24,418 WARN L194 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2020-11-09 15:32:24,626 WARN L194 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2020-11-09 15:32:25,881 WARN L194 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 15:32:26,057 WARN L194 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 15:32:26,428 WARN L194 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 15:32:26,591 WARN L194 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 15:32:26,625 INFO L131 LiptonReduction]: Checked pairs total: 2779 [2020-11-09 15:32:26,625 INFO L133 LiptonReduction]: Total number of compositions: 70 [2020-11-09 15:32:26,631 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-11-09 15:32:26,662 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-11-09 15:32:26,665 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-11-09 15:32:26,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 15:32:26,673 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:32:26,674 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:32:26,674 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:32:26,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:32:26,681 INFO L82 PathProgramCache]: Analyzing trace with hash -460323677, now seen corresponding path program 1 times [2020-11-09 15:32:26,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:32:26,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024696214] [2020-11-09 15:32:26,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:32:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:32:26,892 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 15:32:26,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024696214] [2020-11-09 15:32:26,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:32:26,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:32:26,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [801074364] [2020-11-09 15:32:26,896 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:32:26,900 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:32:26,915 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 15:32:26,916 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:32:26,921 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:32:26,922 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 15:32:26,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:32:26,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 15:32:26,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 15:32:26,942 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-11-09 15:32:26,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:32:26,967 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-11-09 15:32:26,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 15:32:26,969 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-09 15:32:26,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:32:26,988 INFO L225 Difference]: With dead ends: 362 [2020-11-09 15:32:26,989 INFO L226 Difference]: Without dead ends: 298 [2020-11-09 15:32:26,991 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 15:32:27,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-11-09 15:32:27,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-11-09 15:32:27,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-11-09 15:32:27,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-11-09 15:32:27,083 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-11-09 15:32:27,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:32:27,084 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-11-09 15:32:27,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 15:32:27,084 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-11-09 15:32:27,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 15:32:27,086 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:32:27,088 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:32:27,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 15:32:27,089 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:32:27,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:32:27,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1385173359, now seen corresponding path program 1 times [2020-11-09 15:32:27,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:32:27,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135587029] [2020-11-09 15:32:27,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:32:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:32:27,314 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 15:32:27,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135587029] [2020-11-09 15:32:27,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:32:27,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:32:27,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1475236301] [2020-11-09 15:32:27,315 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:32:27,316 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:32:27,336 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-11-09 15:32:27,336 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:32:27,337 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:32:27,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:32:27,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:32:27,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:32:27,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:32:27,344 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-11-09 15:32:27,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:32:27,427 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-11-09 15:32:27,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:32:27,430 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-09 15:32:27,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:32:27,436 INFO L225 Difference]: With dead ends: 330 [2020-11-09 15:32:27,438 INFO L226 Difference]: Without dead ends: 266 [2020-11-09 15:32:27,440 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 15:32:27,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-11-09 15:32:27,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-11-09 15:32:27,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-11-09 15:32:27,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-11-09 15:32:27,485 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-11-09 15:32:27,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:32:27,485 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-11-09 15:32:27,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:32:27,485 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-11-09 15:32:27,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 15:32:27,491 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:32:27,491 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:32:27,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 15:32:27,491 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:32:27,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:32:27,492 INFO L82 PathProgramCache]: Analyzing trace with hash 585999155, now seen corresponding path program 1 times [2020-11-09 15:32:27,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:32:27,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961465154] [2020-11-09 15:32:27,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:32:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:32:27,657 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 15:32:27,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961465154] [2020-11-09 15:32:27,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:32:27,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:32:27,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [850222021] [2020-11-09 15:32:27,659 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:32:27,660 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:32:27,662 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 20 transitions. [2020-11-09 15:32:27,663 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:32:27,751 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:32:27,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:32:27,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:32:27,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:32:27,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:32:27,756 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-11-09 15:32:27,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:32:27,918 INFO L93 Difference]: Finished difference Result 374 states and 1022 transitions. [2020-11-09 15:32:27,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 15:32:27,922 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-09 15:32:27,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:32:27,924 INFO L225 Difference]: With dead ends: 374 [2020-11-09 15:32:27,925 INFO L226 Difference]: Without dead ends: 200 [2020-11-09 15:32:27,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-09 15:32:27,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-11-09 15:32:27,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2020-11-09 15:32:27,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-11-09 15:32:27,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 532 transitions. [2020-11-09 15:32:27,938 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 532 transitions. Word has length 10 [2020-11-09 15:32:27,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:32:27,939 INFO L481 AbstractCegarLoop]: Abstraction has 200 states and 532 transitions. [2020-11-09 15:32:27,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:32:27,939 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 532 transitions. [2020-11-09 15:32:27,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 15:32:27,941 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:32:27,941 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:32:27,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 15:32:27,941 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:32:27,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:32:27,942 INFO L82 PathProgramCache]: Analyzing trace with hash 176770060, now seen corresponding path program 1 times [2020-11-09 15:32:27,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:32:27,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255211567] [2020-11-09 15:32:27,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:32:27,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:32:28,025 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 15:32:28,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255211567] [2020-11-09 15:32:28,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:32:28,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:32:28,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1397168416] [2020-11-09 15:32:28,027 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:32:28,028 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:32:28,031 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 30 transitions. [2020-11-09 15:32:28,031 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:32:28,071 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:32:28,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:32:28,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:32:28,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:32:28,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:32:28,073 INFO L87 Difference]: Start difference. First operand 200 states and 532 transitions. Second operand 4 states. [2020-11-09 15:32:28,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:32:28,126 INFO L93 Difference]: Finished difference Result 268 states and 670 transitions. [2020-11-09 15:32:28,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:32:28,127 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-09 15:32:28,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:32:28,129 INFO L225 Difference]: With dead ends: 268 [2020-11-09 15:32:28,129 INFO L226 Difference]: Without dead ends: 200 [2020-11-09 15:32:28,129 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:32:28,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-11-09 15:32:28,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 176. [2020-11-09 15:32:28,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-11-09 15:32:28,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 440 transitions. [2020-11-09 15:32:28,147 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 440 transitions. Word has length 12 [2020-11-09 15:32:28,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:32:28,148 INFO L481 AbstractCegarLoop]: Abstraction has 176 states and 440 transitions. [2020-11-09 15:32:28,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:32:28,148 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 440 transitions. [2020-11-09 15:32:28,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 15:32:28,152 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:32:28,152 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:32:28,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 15:32:28,153 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:32:28,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:32:28,153 INFO L82 PathProgramCache]: Analyzing trace with hash 229025079, now seen corresponding path program 1 times [2020-11-09 15:32:28,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:32:28,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656354576] [2020-11-09 15:32:28,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:32:28,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:32:28,275 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 15:32:28,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656354576] [2020-11-09 15:32:28,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:32:28,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:32:28,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [347831843] [2020-11-09 15:32:28,277 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:32:28,280 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:32:28,285 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 18 transitions. [2020-11-09 15:32:28,285 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:32:28,318 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:32:28,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:32:28,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:32:28,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:32:28,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:32:28,321 INFO L87 Difference]: Start difference. First operand 176 states and 440 transitions. Second operand 5 states. [2020-11-09 15:32:28,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:32:28,411 INFO L93 Difference]: Finished difference Result 224 states and 550 transitions. [2020-11-09 15:32:28,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:32:28,416 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-09 15:32:28,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:32:28,417 INFO L225 Difference]: With dead ends: 224 [2020-11-09 15:32:28,417 INFO L226 Difference]: Without dead ends: 116 [2020-11-09 15:32:28,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:32:28,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-11-09 15:32:28,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-11-09 15:32:28,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-11-09 15:32:28,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 278 transitions. [2020-11-09 15:32:28,424 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 278 transitions. Word has length 12 [2020-11-09 15:32:28,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:32:28,424 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 278 transitions. [2020-11-09 15:32:28,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:32:28,424 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 278 transitions. [2020-11-09 15:32:28,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 15:32:28,425 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:32:28,426 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:32:28,426 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 15:32:28,426 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:32:28,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:32:28,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1926444660, now seen corresponding path program 1 times [2020-11-09 15:32:28,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:32:28,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716790294] [2020-11-09 15:32:28,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:32:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:32:28,519 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 15:32:28,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716790294] [2020-11-09 15:32:28,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:32:28,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 15:32:28,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2019925611] [2020-11-09 15:32:28,520 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:32:28,522 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:32:28,526 INFO L252 McrAutomatonBuilder]: Finished intersection with 28 states and 41 transitions. [2020-11-09 15:32:28,526 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:32:28,589 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:32:28,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:32:28,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:32:28,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:32:28,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:32:28,591 INFO L87 Difference]: Start difference. First operand 116 states and 278 transitions. Second operand 5 states. [2020-11-09 15:32:28,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:32:28,659 INFO L93 Difference]: Finished difference Result 152 states and 362 transitions. [2020-11-09 15:32:28,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 15:32:28,660 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-09 15:32:28,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:32:28,661 INFO L225 Difference]: With dead ends: 152 [2020-11-09 15:32:28,661 INFO L226 Difference]: Without dead ends: 80 [2020-11-09 15:32:28,662 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:32:28,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-11-09 15:32:28,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-11-09 15:32:28,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-11-09 15:32:28,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 176 transitions. [2020-11-09 15:32:28,666 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 176 transitions. Word has length 14 [2020-11-09 15:32:28,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:32:28,666 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 176 transitions. [2020-11-09 15:32:28,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:32:28,667 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 176 transitions. [2020-11-09 15:32:28,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 15:32:28,667 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:32:28,668 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:32:28,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 15:32:28,668 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:32:28,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:32:28,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1405608924, now seen corresponding path program 2 times [2020-11-09 15:32:28,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:32:28,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241806451] [2020-11-09 15:32:28,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:32:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:32:28,745 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 15:32:28,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241806451] [2020-11-09 15:32:28,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:32:28,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:32:28,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1851170961] [2020-11-09 15:32:28,746 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:32:28,747 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:32:28,752 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 32 transitions. [2020-11-09 15:32:28,752 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:32:28,763 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-09 15:32:28,763 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 15:32:28,782 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-09 15:32:28,782 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 15:32:28,791 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-09 15:32:28,792 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 15:32:28,815 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-09 15:32:28,815 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 15:32:28,860 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4843#(not (= 3 ~__unbuffered_cnt~0))] [2020-11-09 15:32:28,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:32:28,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:32:28,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:32:28,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:32:28,862 INFO L87 Difference]: Start difference. First operand 80 states and 176 transitions. Second operand 5 states. [2020-11-09 15:32:28,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:32:28,944 INFO L93 Difference]: Finished difference Result 72 states and 135 transitions. [2020-11-09 15:32:28,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:32:28,945 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-09 15:32:28,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:32:28,946 INFO L225 Difference]: With dead ends: 72 [2020-11-09 15:32:28,946 INFO L226 Difference]: Without dead ends: 50 [2020-11-09 15:32:28,946 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:32:28,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-11-09 15:32:28,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-11-09 15:32:28,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-11-09 15:32:28,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 83 transitions. [2020-11-09 15:32:28,952 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 83 transitions. Word has length 14 [2020-11-09 15:32:28,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:32:28,952 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 83 transitions. [2020-11-09 15:32:28,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:32:28,952 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 83 transitions. [2020-11-09 15:32:28,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-09 15:32:28,953 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:32:28,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:32:28,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 15:32:28,953 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:32:28,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:32:28,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1628487690, now seen corresponding path program 1 times [2020-11-09 15:32:28,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:32:28,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414316536] [2020-11-09 15:32:28,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:32:28,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:32:29,032 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 15:32:29,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414316536] [2020-11-09 15:32:29,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:32:29,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 15:32:29,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1742112850] [2020-11-09 15:32:29,033 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:32:29,035 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:32:29,039 INFO L252 McrAutomatonBuilder]: Finished intersection with 28 states and 38 transitions. [2020-11-09 15:32:29,040 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:32:29,051 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-09 15:32:29,052 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 15:32:29,207 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [5026#(not (= 3 ~__unbuffered_cnt~0)), 5027#(not (= ~__unbuffered_cnt~0 2)), 5028#(not (= ~__unbuffered_cnt~0 1)), 5029#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 15:32:29,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-09 15:32:29,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:32:29,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-09 15:32:29,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-11-09 15:32:29,208 INFO L87 Difference]: Start difference. First operand 50 states and 83 transitions. Second operand 10 states. [2020-11-09 15:32:29,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:32:29,333 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2020-11-09 15:32:29,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 15:32:29,335 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-11-09 15:32:29,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:32:29,335 INFO L225 Difference]: With dead ends: 43 [2020-11-09 15:32:29,336 INFO L226 Difference]: Without dead ends: 37 [2020-11-09 15:32:29,337 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-11-09 15:32:29,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-09 15:32:29,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-09 15:32:29,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-09 15:32:29,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-11-09 15:32:29,339 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 16 [2020-11-09 15:32:29,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:32:29,339 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-11-09 15:32:29,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-09 15:32:29,339 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-11-09 15:32:29,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 15:32:29,340 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:32:29,340 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:32:29,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 15:32:29,340 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:32:29,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:32:29,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1397206146, now seen corresponding path program 1 times [2020-11-09 15:32:29,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:32:29,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920532561] [2020-11-09 15:32:29,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:32:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:32:29,604 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 15:32:29,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920532561] [2020-11-09 15:32:29,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:32:29,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-09 15:32:29,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [857802814] [2020-11-09 15:32:29,605 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:32:29,607 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:32:29,612 INFO L252 McrAutomatonBuilder]: Finished intersection with 31 states and 42 transitions. [2020-11-09 15:32:29,612 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:32:29,779 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [5163#(and (= ~__unbuffered_p0_EBX~0 1) (<= 1 ~__unbuffered_cnt~0) (<= ~__unbuffered_cnt~0 1)), 5164#(and (= ~__unbuffered_p0_EBX~0 1) (<= ~__unbuffered_cnt~0 0) (<= 0 ~__unbuffered_cnt~0))] [2020-11-09 15:32:29,780 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-09 15:32:29,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:32:29,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-09 15:32:29,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-11-09 15:32:29,781 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 12 states. [2020-11-09 15:32:30,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:32:30,090 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-11-09 15:32:30,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-09 15:32:30,091 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 18 [2020-11-09 15:32:30,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:32:30,091 INFO L225 Difference]: With dead ends: 36 [2020-11-09 15:32:30,091 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 15:32:30,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-11-09 15:32:30,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 15:32:30,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 15:32:30,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 15:32:30,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 15:32:30,093 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-11-09 15:32:30,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:32:30,093 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 15:32:30,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-09 15:32:30,093 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 15:32:30,093 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 15:32:30,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 15:32:30,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:32:30 BasicIcfg [2020-11-09 15:32:30,099 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 15:32:30,102 INFO L168 Benchmark]: Toolchain (without parser) took 11152.07 ms. Allocated memory was 151.0 MB in the beginning and 231.7 MB in the end (delta: 80.7 MB). Free memory was 124.4 MB in the beginning and 130.2 MB in the end (delta: -5.8 MB). Peak memory consumption was 75.3 MB. Max. memory is 8.0 GB. [2020-11-09 15:32:30,103 INFO L168 Benchmark]: CDTParser took 0.79 ms. Allocated memory is still 151.0 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:32:30,104 INFO L168 Benchmark]: CACSL2BoogieTranslator took 760.07 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 130.1 MB in the end (delta: -6.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 8.0 GB. [2020-11-09 15:32:30,108 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.26 ms. Allocated memory is still 151.0 MB. Free memory was 131.2 MB in the beginning and 129.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:32:30,115 INFO L168 Benchmark]: Boogie Preprocessor took 28.50 ms. Allocated memory is still 151.0 MB. Free memory was 129.1 MB in the beginning and 127.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:32:30,116 INFO L168 Benchmark]: RCFGBuilder took 513.57 ms. Allocated memory is still 151.0 MB. Free memory was 127.5 MB in the beginning and 105.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:32:30,120 INFO L168 Benchmark]: TraceAbstraction took 9764.85 ms. Allocated memory was 151.0 MB in the beginning and 231.7 MB in the end (delta: 80.7 MB). Free memory was 105.0 MB in the beginning and 130.2 MB in the end (delta: -25.3 MB). Peak memory consumption was 56.5 MB. Max. memory is 8.0 GB. [2020-11-09 15:32:30,128 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79 ms. Allocated memory is still 151.0 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 760.07 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 130.1 MB in the end (delta: -6.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 60.26 ms. Allocated memory is still 151.0 MB. Free memory was 131.2 MB in the beginning and 129.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 28.50 ms. Allocated memory is still 151.0 MB. Free memory was 129.1 MB in the beginning and 127.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 513.57 ms. Allocated memory is still 151.0 MB. Free memory was 127.5 MB in the beginning and 105.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 9764.85 ms. Allocated memory was 151.0 MB in the beginning and 231.7 MB in the end (delta: 80.7 MB). Free memory was 105.0 MB in the beginning and 130.2 MB in the end (delta: -25.3 MB). Peak memory consumption was 56.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 756 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 40 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.1s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 70 TotalNumberOfCompositions, 2779 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.6s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.1s, HoareTripleCheckerStatistics: 192 SDtfs, 228 SDslu, 357 SDs, 0 SdLazy, 232 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 54 SyntacticMatches, 8 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 24 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 4941 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...