/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/safe019_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-15 23:59:03,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-15 23:59:03,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-15 23:59:03,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-15 23:59:03,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-15 23:59:03,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-15 23:59:03,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-15 23:59:03,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-15 23:59:03,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-15 23:59:03,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-15 23:59:03,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-15 23:59:03,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-15 23:59:03,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-15 23:59:03,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-15 23:59:03,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-15 23:59:03,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-15 23:59:03,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-15 23:59:03,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-15 23:59:03,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-15 23:59:03,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-15 23:59:03,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-15 23:59:03,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-15 23:59:03,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-15 23:59:03,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-15 23:59:03,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-15 23:59:03,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-15 23:59:03,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-15 23:59:03,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-15 23:59:03,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-15 23:59:03,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-15 23:59:03,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-15 23:59:03,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-15 23:59:03,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-15 23:59:03,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-15 23:59:03,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-15 23:59:03,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-15 23:59:03,300 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-15 23:59:03,324 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-15 23:59:03,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-15 23:59:03,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-15 23:59:03,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-15 23:59:03,326 INFO L138 SettingsManager]: * Use SBE=true [2020-09-15 23:59:03,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-15 23:59:03,326 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-15 23:59:03,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-15 23:59:03,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-15 23:59:03,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-15 23:59:03,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-15 23:59:03,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-15 23:59:03,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-15 23:59:03,328 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-15 23:59:03,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-15 23:59:03,328 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-15 23:59:03,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-15 23:59:03,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-15 23:59:03,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-15 23:59:03,329 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-15 23:59:03,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-15 23:59:03,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 23:59:03,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-15 23:59:03,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-15 23:59:03,330 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-15 23:59:03,330 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-15 23:59:03,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-15 23:59:03,331 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-15 23:59:03,331 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-15 23:59:03,331 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-15 23:59:03,331 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-15 23:59:03,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-15 23:59:03,805 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-15 23:59:03,811 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-15 23:59:03,814 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-15 23:59:03,814 INFO L275 PluginConnector]: CDTParser initialized [2020-09-15 23:59:03,817 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2020-09-15 23:59:03,892 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0b0c10210/ee19f15d3a9c43c9bd622b05c2a6bd42/FLAGfa3dfaa73 [2020-09-15 23:59:04,629 INFO L306 CDTParser]: Found 1 translation units. [2020-09-15 23:59:04,630 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2020-09-15 23:59:04,650 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0b0c10210/ee19f15d3a9c43c9bd622b05c2a6bd42/FLAGfa3dfaa73 [2020-09-15 23:59:04,830 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0b0c10210/ee19f15d3a9c43c9bd622b05c2a6bd42 [2020-09-15 23:59:04,842 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-15 23:59:04,848 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-15 23:59:04,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-15 23:59:04,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-15 23:59:04,854 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-15 23:59:04,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:59:04" (1/1) ... [2020-09-15 23:59:04,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@418ec501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:59:04, skipping insertion in model container [2020-09-15 23:59:04,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:59:04" (1/1) ... [2020-09-15 23:59:04,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-15 23:59:04,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-15 23:59:05,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 23:59:05,461 INFO L203 MainTranslator]: Completed pre-run [2020-09-15 23:59:05,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 23:59:05,595 INFO L208 MainTranslator]: Completed translation [2020-09-15 23:59:05,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:59:05 WrapperNode [2020-09-15 23:59:05,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-15 23:59:05,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-15 23:59:05,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-15 23:59:05,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-15 23:59:05,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:59:05" (1/1) ... [2020-09-15 23:59:05,629 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:59:05" (1/1) ... [2020-09-15 23:59:05,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-15 23:59:05,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-15 23:59:05,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-15 23:59:05,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-15 23:59:05,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:59:05" (1/1) ... [2020-09-15 23:59:05,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:59:05" (1/1) ... [2020-09-15 23:59:05,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:59:05" (1/1) ... [2020-09-15 23:59:05,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:59:05" (1/1) ... [2020-09-15 23:59:05,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:59:05" (1/1) ... [2020-09-15 23:59:05,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:59:05" (1/1) ... [2020-09-15 23:59:05,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:59:05" (1/1) ... [2020-09-15 23:59:05,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-15 23:59:05,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-15 23:59:05,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-15 23:59:05,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-15 23:59:05,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:59:05" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-15 23:59:05,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-15 23:59:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-15 23:59:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-15 23:59:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-15 23:59:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-15 23:59:05,773 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-15 23:59:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-15 23:59:05,774 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-15 23:59:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-15 23:59:05,774 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-15 23:59:05,775 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-09-15 23:59:05,775 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-09-15 23:59:05,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-15 23:59:05,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-15 23:59:05,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-15 23:59:05,780 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-15 23:59:06,253 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-15 23:59:06,253 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-15 23:59:06,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:59:06 BoogieIcfgContainer [2020-09-15 23:59:06,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-15 23:59:06,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-15 23:59:06,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-15 23:59:06,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-15 23:59:06,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 11:59:04" (1/3) ... [2020-09-15 23:59:06,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b24a94f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:59:06, skipping insertion in model container [2020-09-15 23:59:06,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:59:05" (2/3) ... [2020-09-15 23:59:06,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b24a94f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:59:06, skipping insertion in model container [2020-09-15 23:59:06,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:59:06" (3/3) ... [2020-09-15 23:59:06,270 INFO L109 eAbstractionObserver]: Analyzing ICFG safe019_tso.oepc.i [2020-09-15 23:59:06,283 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-15 23:59:06,283 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-15 23:59:06,293 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-15 23:59:06,294 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-15 23:59:06,327 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,327 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,328 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,328 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,329 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,329 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,330 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,330 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,330 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,330 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,331 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,331 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,331 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,332 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,332 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,332 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,333 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,333 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,333 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,334 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,334 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,334 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,334 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,335 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,340 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,340 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,340 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,341 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,350 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,350 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,351 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,351 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,355 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,356 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,356 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,356 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,359 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,359 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,360 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,360 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:59:06,386 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-15 23:59:06,416 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-15 23:59:06,416 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-15 23:59:06,416 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-15 23:59:06,416 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-15 23:59:06,416 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-15 23:59:06,417 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-15 23:59:06,417 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-15 23:59:06,417 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-15 23:59:06,436 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 81 transitions, 182 flow [2020-09-15 23:59:06,439 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-09-15 23:59:06,492 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-09-15 23:59:06,492 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 23:59:06,499 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-15 23:59:06,503 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-09-15 23:59:06,531 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-09-15 23:59:06,532 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 23:59:06,533 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-15 23:59:06,536 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-09-15 23:59:06,537 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-15 23:59:08,062 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-09-15 23:59:08,200 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-09-15 23:59:08,286 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3093 [2020-09-15 23:59:08,287 INFO L214 etLargeBlockEncoding]: Total number of compositions: 65 [2020-09-15 23:59:08,293 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 25 transitions, 70 flow [2020-09-15 23:59:08,353 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-09-15 23:59:08,356 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-09-15 23:59:08,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-15 23:59:08,370 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:59:08,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:59:08,372 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:59:08,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:59:08,382 INFO L82 PathProgramCache]: Analyzing trace with hash -2005095105, now seen corresponding path program 1 times [2020-09-15 23:59:08,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:59:08,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345795603] [2020-09-15 23:59:08,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:59:08,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:59:08,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:59:08,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345795603] [2020-09-15 23:59:08,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:59:08,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-15 23:59:08,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [805829211] [2020-09-15 23:59:08,698 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:59:08,702 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:59:08,721 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-09-15 23:59:08,721 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:59:08,723 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:59:08,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 23:59:08,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:59:08,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 23:59:08,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:59:08,746 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-09-15 23:59:08,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:59:08,805 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-09-15 23:59:08,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 23:59:08,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-15 23:59:08,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:59:08,851 INFO L225 Difference]: With dead ends: 670 [2020-09-15 23:59:08,851 INFO L226 Difference]: Without dead ends: 526 [2020-09-15 23:59:08,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:59:08,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-09-15 23:59:08,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-09-15 23:59:08,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-09-15 23:59:08,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-09-15 23:59:08,989 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-09-15 23:59:08,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:59:08,990 INFO L479 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-09-15 23:59:08,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 23:59:08,991 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-09-15 23:59:08,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-15 23:59:08,993 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:59:08,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:59:08,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-15 23:59:08,994 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:59:08,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:59:08,995 INFO L82 PathProgramCache]: Analyzing trace with hash -2027540211, now seen corresponding path program 1 times [2020-09-15 23:59:08,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:59:08,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628949948] [2020-09-15 23:59:08,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:59:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:59:09,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:59:09,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628949948] [2020-09-15 23:59:09,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:59:09,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 23:59:09,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1977615476] [2020-09-15 23:59:09,102 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:59:09,104 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:59:09,106 INFO L274 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-09-15 23:59:09,107 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:59:09,195 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:59:09,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 23:59:09,197 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:59:09,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 23:59:09,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 23:59:09,200 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-09-15 23:59:09,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:59:09,253 INFO L93 Difference]: Finished difference Result 724 states and 2331 transitions. [2020-09-15 23:59:09,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 23:59:09,254 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-15 23:59:09,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:59:09,274 INFO L225 Difference]: With dead ends: 724 [2020-09-15 23:59:09,274 INFO L226 Difference]: Without dead ends: 412 [2020-09-15 23:59:09,276 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:59:09,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-09-15 23:59:09,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2020-09-15 23:59:09,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-09-15 23:59:09,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 1323 transitions. [2020-09-15 23:59:09,297 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 1323 transitions. Word has length 11 [2020-09-15 23:59:09,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:59:09,298 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 1323 transitions. [2020-09-15 23:59:09,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 23:59:09,298 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 1323 transitions. [2020-09-15 23:59:09,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-15 23:59:09,300 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:59:09,300 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:59:09,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-15 23:59:09,301 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:59:09,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:59:09,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1543893440, now seen corresponding path program 1 times [2020-09-15 23:59:09,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:59:09,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432831358] [2020-09-15 23:59:09,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:59:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:59:09,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:59:09,386 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432831358] [2020-09-15 23:59:09,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:59:09,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-15 23:59:09,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2087380757] [2020-09-15 23:59:09,390 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:59:09,391 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:59:09,396 INFO L274 McrAutomatonBuilder]: Finished intersection with 15 states and 16 transitions. [2020-09-15 23:59:09,397 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:59:09,412 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:59:09,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 23:59:09,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:59:09,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 23:59:09,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:59:09,413 INFO L87 Difference]: Start difference. First operand 412 states and 1323 transitions. Second operand 3 states. [2020-09-15 23:59:09,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:59:09,426 INFO L93 Difference]: Finished difference Result 394 states and 1254 transitions. [2020-09-15 23:59:09,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 23:59:09,426 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-09-15 23:59:09,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:59:09,429 INFO L225 Difference]: With dead ends: 394 [2020-09-15 23:59:09,430 INFO L226 Difference]: Without dead ends: 394 [2020-09-15 23:59:09,430 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:59:09,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-09-15 23:59:09,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-09-15 23:59:09,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-15 23:59:09,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1254 transitions. [2020-09-15 23:59:09,445 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1254 transitions. Word has length 12 [2020-09-15 23:59:09,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:59:09,446 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 1254 transitions. [2020-09-15 23:59:09,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 23:59:09,446 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1254 transitions. [2020-09-15 23:59:09,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-15 23:59:09,453 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:59:09,453 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:59:09,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-15 23:59:09,453 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:59:09,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:59:09,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1381595750, now seen corresponding path program 1 times [2020-09-15 23:59:09,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:59:09,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872542975] [2020-09-15 23:59:09,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:59:09,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:59:09,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:59:09,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872542975] [2020-09-15 23:59:09,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:59:09,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 23:59:09,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [215631381] [2020-09-15 23:59:09,554 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:59:09,556 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:59:09,559 INFO L274 McrAutomatonBuilder]: Finished intersection with 23 states and 31 transitions. [2020-09-15 23:59:09,559 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:59:09,584 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:59:09,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 23:59:09,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:59:09,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 23:59:09,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 23:59:09,586 INFO L87 Difference]: Start difference. First operand 394 states and 1254 transitions. Second operand 4 states. [2020-09-15 23:59:09,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:59:09,614 INFO L93 Difference]: Finished difference Result 652 states and 1957 transitions. [2020-09-15 23:59:09,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-15 23:59:09,615 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-15 23:59:09,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:59:09,618 INFO L225 Difference]: With dead ends: 652 [2020-09-15 23:59:09,618 INFO L226 Difference]: Without dead ends: 340 [2020-09-15 23:59:09,619 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:59:09,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-09-15 23:59:09,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 304. [2020-09-15 23:59:09,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-09-15 23:59:09,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 891 transitions. [2020-09-15 23:59:09,632 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 891 transitions. Word has length 13 [2020-09-15 23:59:09,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:59:09,632 INFO L479 AbstractCegarLoop]: Abstraction has 304 states and 891 transitions. [2020-09-15 23:59:09,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 23:59:09,633 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 891 transitions. [2020-09-15 23:59:09,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-15 23:59:09,634 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:59:09,634 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:59:09,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-15 23:59:09,634 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:59:09,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:59:09,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1391724752, now seen corresponding path program 1 times [2020-09-15 23:59:09,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:59:09,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395868498] [2020-09-15 23:59:09,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:59:09,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:59:09,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:59:09,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395868498] [2020-09-15 23:59:09,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:59:09,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 23:59:09,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [988612235] [2020-09-15 23:59:09,699 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:59:09,701 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:59:09,704 INFO L274 McrAutomatonBuilder]: Finished intersection with 23 states and 33 transitions. [2020-09-15 23:59:09,704 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:59:09,812 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:59:09,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 23:59:09,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:59:09,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 23:59:09,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 23:59:09,814 INFO L87 Difference]: Start difference. First operand 304 states and 891 transitions. Second operand 4 states. [2020-09-15 23:59:09,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:59:09,842 INFO L93 Difference]: Finished difference Result 406 states and 1128 transitions. [2020-09-15 23:59:09,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 23:59:09,843 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-15 23:59:09,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:59:09,845 INFO L225 Difference]: With dead ends: 406 [2020-09-15 23:59:09,845 INFO L226 Difference]: Without dead ends: 226 [2020-09-15 23:59:09,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:59:09,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-15 23:59:09,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-09-15 23:59:09,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-15 23:59:09,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 619 transitions. [2020-09-15 23:59:09,855 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 619 transitions. Word has length 13 [2020-09-15 23:59:09,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:59:09,856 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 619 transitions. [2020-09-15 23:59:09,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 23:59:09,856 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 619 transitions. [2020-09-15 23:59:09,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-15 23:59:09,857 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:59:09,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:59:09,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-15 23:59:09,858 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:59:09,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:59:09,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1162350155, now seen corresponding path program 1 times [2020-09-15 23:59:09,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:59:09,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792839096] [2020-09-15 23:59:09,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:59:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:59:09,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:59:09,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792839096] [2020-09-15 23:59:09,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:59:09,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 23:59:09,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1576511334] [2020-09-15 23:59:09,985 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:59:09,987 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:59:09,993 INFO L274 McrAutomatonBuilder]: Finished intersection with 33 states and 54 transitions. [2020-09-15 23:59:09,993 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:59:10,021 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:59:10,083 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:59:10,103 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:59:10,137 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:59:10,163 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:59:10,192 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:59:10,220 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:59:10,254 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:59:10,272 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [8106#(not (= 4 ~__unbuffered_cnt~0))] [2020-09-15 23:59:10,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-15 23:59:10,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:59:10,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-15 23:59:10,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:59:10,273 INFO L87 Difference]: Start difference. First operand 226 states and 619 transitions. Second operand 5 states. [2020-09-15 23:59:10,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:59:10,343 INFO L93 Difference]: Finished difference Result 243 states and 599 transitions. [2020-09-15 23:59:10,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-15 23:59:10,344 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-15 23:59:10,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:59:10,345 INFO L225 Difference]: With dead ends: 243 [2020-09-15 23:59:10,345 INFO L226 Difference]: Without dead ends: 162 [2020-09-15 23:59:10,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-15 23:59:10,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-09-15 23:59:10,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-09-15 23:59:10,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-09-15 23:59:10,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 369 transitions. [2020-09-15 23:59:10,351 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 369 transitions. Word has length 14 [2020-09-15 23:59:10,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:59:10,352 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 369 transitions. [2020-09-15 23:59:10,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-15 23:59:10,352 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 369 transitions. [2020-09-15 23:59:10,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-15 23:59:10,353 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:59:10,353 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:59:10,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-15 23:59:10,353 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:59:10,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:59:10,354 INFO L82 PathProgramCache]: Analyzing trace with hash -469082430, now seen corresponding path program 1 times [2020-09-15 23:59:10,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:59:10,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823709381] [2020-09-15 23:59:10,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:59:10,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:59:10,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:59:10,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823709381] [2020-09-15 23:59:10,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:59:10,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-15 23:59:10,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1808569403] [2020-09-15 23:59:10,469 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:59:10,471 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:59:10,477 INFO L274 McrAutomatonBuilder]: Finished intersection with 38 states and 62 transitions. [2020-09-15 23:59:10,478 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:59:10,515 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:59:10,533 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:59:10,555 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:59:10,604 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:59:10,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-15 23:59:10,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:59:10,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-15 23:59:10,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-15 23:59:10,606 INFO L87 Difference]: Start difference. First operand 162 states and 369 transitions. Second operand 6 states. [2020-09-15 23:59:10,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:59:10,667 INFO L93 Difference]: Finished difference Result 158 states and 337 transitions. [2020-09-15 23:59:10,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-15 23:59:10,668 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-09-15 23:59:10,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:59:10,669 INFO L225 Difference]: With dead ends: 158 [2020-09-15 23:59:10,669 INFO L226 Difference]: Without dead ends: 125 [2020-09-15 23:59:10,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-15 23:59:10,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-09-15 23:59:10,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-09-15 23:59:10,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-09-15 23:59:10,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2020-09-15 23:59:10,674 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 16 [2020-09-15 23:59:10,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:59:10,675 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2020-09-15 23:59:10,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-15 23:59:10,675 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2020-09-15 23:59:10,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-15 23:59:10,675 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:59:10,676 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:59:10,676 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-15 23:59:10,676 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:59:10,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:59:10,676 INFO L82 PathProgramCache]: Analyzing trace with hash 483879941, now seen corresponding path program 1 times [2020-09-15 23:59:10,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:59:10,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437085013] [2020-09-15 23:59:10,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:59:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:59:10,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:59:10,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437085013] [2020-09-15 23:59:10,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:59:10,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-15 23:59:10,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [834380841] [2020-09-15 23:59:10,783 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:59:10,785 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:59:10,792 INFO L274 McrAutomatonBuilder]: Finished intersection with 40 states and 58 transitions. [2020-09-15 23:59:10,793 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:59:10,810 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:59:10,844 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:59:10,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-15 23:59:10,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:59:10,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-15 23:59:10,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-15 23:59:10,845 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 7 states. [2020-09-15 23:59:10,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:59:10,920 INFO L93 Difference]: Finished difference Result 120 states and 253 transitions. [2020-09-15 23:59:10,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-15 23:59:10,921 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-09-15 23:59:10,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:59:10,922 INFO L225 Difference]: With dead ends: 120 [2020-09-15 23:59:10,922 INFO L226 Difference]: Without dead ends: 71 [2020-09-15 23:59:10,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-15 23:59:10,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-15 23:59:10,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-09-15 23:59:10,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-15 23:59:10,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-09-15 23:59:10,925 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 18 [2020-09-15 23:59:10,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:59:10,926 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-09-15 23:59:10,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-15 23:59:10,926 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-09-15 23:59:10,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-15 23:59:10,927 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:59:10,927 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:59:10,927 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-15 23:59:10,927 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:59:10,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:59:10,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1087350585, now seen corresponding path program 1 times [2020-09-15 23:59:10,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:59:10,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686713872] [2020-09-15 23:59:10,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:59:10,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:59:10,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:59:10,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686713872] [2020-09-15 23:59:10,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:59:10,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 23:59:10,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1901937008] [2020-09-15 23:59:10,989 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:59:10,991 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:59:10,998 INFO L274 McrAutomatonBuilder]: Finished intersection with 44 states and 63 transitions. [2020-09-15 23:59:10,998 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:59:11,025 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:59:11,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 23:59:11,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:59:11,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 23:59:11,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 23:59:11,026 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-09-15 23:59:11,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:59:11,038 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-09-15 23:59:11,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 23:59:11,038 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-09-15 23:59:11,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:59:11,039 INFO L225 Difference]: With dead ends: 70 [2020-09-15 23:59:11,039 INFO L226 Difference]: Without dead ends: 0 [2020-09-15 23:59:11,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:59:11,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-15 23:59:11,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-15 23:59:11,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-15 23:59:11,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-15 23:59:11,040 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-09-15 23:59:11,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:59:11,040 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-15 23:59:11,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 23:59:11,041 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-15 23:59:11,041 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-15 23:59:11,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-15 23:59:11,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 11:59:11 BasicIcfg [2020-09-15 23:59:11,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-15 23:59:11,048 INFO L168 Benchmark]: Toolchain (without parser) took 6203.67 ms. Allocated memory was 146.8 MB in the beginning and 281.5 MB in the end (delta: 134.7 MB). Free memory was 101.1 MB in the beginning and 133.6 MB in the end (delta: -32.5 MB). Peak memory consumption was 102.2 MB. Max. memory is 7.1 GB. [2020-09-15 23:59:11,049 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-15 23:59:11,050 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.72 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 100.7 MB in the beginning and 160.3 MB in the end (delta: -59.6 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-09-15 23:59:11,050 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.86 ms. Allocated memory is still 203.4 MB. Free memory was 160.3 MB in the beginning and 158.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-15 23:59:11,051 INFO L168 Benchmark]: Boogie Preprocessor took 30.40 ms. Allocated memory is still 203.4 MB. Free memory was 158.3 MB in the beginning and 156.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-15 23:59:11,052 INFO L168 Benchmark]: RCFGBuilder took 573.89 ms. Allocated memory is still 203.4 MB. Free memory was 156.3 MB in the beginning and 132.6 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-09-15 23:59:11,053 INFO L168 Benchmark]: TraceAbstraction took 4785.08 ms. Allocated memory was 203.4 MB in the beginning and 281.5 MB in the end (delta: 78.1 MB). Free memory was 131.9 MB in the beginning and 133.6 MB in the end (delta: -1.7 MB). Peak memory consumption was 76.5 MB. Max. memory is 7.1 GB. [2020-09-15 23:59:11,057 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 746.72 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 100.7 MB in the beginning and 160.3 MB in the end (delta: -59.6 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 57.86 ms. Allocated memory is still 203.4 MB. Free memory was 160.3 MB in the beginning and 158.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.40 ms. Allocated memory is still 203.4 MB. Free memory was 158.3 MB in the beginning and 156.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 573.89 ms. Allocated memory is still 203.4 MB. Free memory was 156.3 MB in the beginning and 132.6 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4785.08 ms. Allocated memory was 203.4 MB in the beginning and 281.5 MB in the end (delta: 78.1 MB). Free memory was 131.9 MB in the beginning and 133.6 MB in the end (delta: -1.7 MB). Peak memory consumption was 76.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.8s, 92 ProgramPointsBefore, 38 ProgramPointsAfterwards, 81 TransitionsBefore, 25 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 944 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 3093 CheckedPairsTotal, 65 TotalNumberOfCompositions - PositiveResult [Line: 7]: 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 5 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.6s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 198 SDtfs, 178 SDslu, 295 SDs, 0 SdLazy, 161 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 108 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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, 36 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 4842 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...