/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/safe037_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-12 00:14:06,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-12 00:14:06,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-12 00:14:06,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-12 00:14:06,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-12 00:14:06,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-12 00:14:06,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-12 00:14:06,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-12 00:14:06,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-12 00:14:06,541 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-12 00:14:06,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-12 00:14:06,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-12 00:14:06,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-12 00:14:06,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-12 00:14:06,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-12 00:14:06,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-12 00:14:06,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-12 00:14:06,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-12 00:14:06,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-12 00:14:06,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-12 00:14:06,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-12 00:14:06,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-12 00:14:06,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-12 00:14:06,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-12 00:14:06,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-12 00:14:06,571 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-12 00:14:06,572 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-12 00:14:06,575 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-12 00:14:06,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-12 00:14:06,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-12 00:14:06,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-12 00:14:06,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-12 00:14:06,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-12 00:14:06,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-12 00:14:06,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-12 00:14:06,583 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-12 00:14:06,585 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 [2020-09-12 00:14:06,640 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-12 00:14:06,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-12 00:14:06,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-12 00:14:06,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-12 00:14:06,645 INFO L138 SettingsManager]: * Use SBE=true [2020-09-12 00:14:06,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-12 00:14:06,645 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-12 00:14:06,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-12 00:14:06,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-12 00:14:06,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-12 00:14:06,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-12 00:14:06,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-12 00:14:06,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-12 00:14:06,647 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-12 00:14:06,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-12 00:14:06,648 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-12 00:14:06,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-12 00:14:06,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-12 00:14:06,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-12 00:14:06,649 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-12 00:14:06,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-12 00:14:06,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-12 00:14:06,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-12 00:14:06,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-12 00:14:06,650 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-12 00:14:06,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-12 00:14:06,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-12 00:14:06,651 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-12 00:14:06,652 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-12 00:14:06,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-12 00:14:06,652 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-12 00:14:07,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-12 00:14:07,156 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-12 00:14:07,161 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-12 00:14:07,163 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-12 00:14:07,164 INFO L275 PluginConnector]: CDTParser initialized [2020-09-12 00:14:07,167 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_tso.opt.i [2020-09-12 00:14:07,259 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4a328518/813e7bbbcc7a43b1b2a80fdf203ed01e/FLAG7da0d7376 [2020-09-12 00:14:07,874 INFO L306 CDTParser]: Found 1 translation units. [2020-09-12 00:14:07,875 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe037_tso.opt.i [2020-09-12 00:14:07,894 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4a328518/813e7bbbcc7a43b1b2a80fdf203ed01e/FLAG7da0d7376 [2020-09-12 00:14:08,135 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4a328518/813e7bbbcc7a43b1b2a80fdf203ed01e [2020-09-12 00:14:08,148 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-12 00:14:08,153 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-12 00:14:08,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-12 00:14:08,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-12 00:14:08,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-12 00:14:08,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 12:14:08" (1/1) ... [2020-09-12 00:14:08,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@235a7cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:08, skipping insertion in model container [2020-09-12 00:14:08,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 12:14:08" (1/1) ... [2020-09-12 00:14:08,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-12 00:14:08,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-12 00:14:08,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-12 00:14:08,798 INFO L203 MainTranslator]: Completed pre-run [2020-09-12 00:14:08,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-12 00:14:08,952 INFO L208 MainTranslator]: Completed translation [2020-09-12 00:14:08,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:08 WrapperNode [2020-09-12 00:14:08,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-12 00:14:08,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-12 00:14:08,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-12 00:14:08,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-12 00:14:08,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:08" (1/1) ... [2020-09-12 00:14:08,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:08" (1/1) ... [2020-09-12 00:14:09,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-12 00:14:09,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-12 00:14:09,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-12 00:14:09,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-12 00:14:09,024 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:08" (1/1) ... [2020-09-12 00:14:09,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:08" (1/1) ... [2020-09-12 00:14:09,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:08" (1/1) ... [2020-09-12 00:14:09,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:08" (1/1) ... [2020-09-12 00:14:09,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:08" (1/1) ... [2020-09-12 00:14:09,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:08" (1/1) ... [2020-09-12 00:14:09,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:08" (1/1) ... [2020-09-12 00:14:09,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-12 00:14:09,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-12 00:14:09,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-12 00:14:09,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-12 00:14:09,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:08" (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 [2020-09-12 00:14:09,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-12 00:14:09,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-12 00:14:09,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-12 00:14:09,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-12 00:14:09,135 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-12 00:14:09,135 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-12 00:14:09,136 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-12 00:14:09,136 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-12 00:14:09,136 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-12 00:14:09,136 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-12 00:14:09,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-12 00:14:09,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-12 00:14:09,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-12 00:14:09,139 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-12 00:14:09,496 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-12 00:14:09,497 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-12 00:14:09,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 12:14:09 BoogieIcfgContainer [2020-09-12 00:14:09,503 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-12 00:14:09,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-12 00:14:09,505 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-12 00:14:09,508 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-12 00:14:09,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 12:14:08" (1/3) ... [2020-09-12 00:14:09,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4e131e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 12:14:09, skipping insertion in model container [2020-09-12 00:14:09,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:14:08" (2/3) ... [2020-09-12 00:14:09,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4e131e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 12:14:09, skipping insertion in model container [2020-09-12 00:14:09,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 12:14:09" (3/3) ... [2020-09-12 00:14:09,519 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_tso.opt.i [2020-09-12 00:14:09,530 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-12 00:14:09,530 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-12 00:14:09,539 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-12 00:14:09,540 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-12 00:14:09,595 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,595 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,596 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,596 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,598 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,598 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,600 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,600 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,600 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,600 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,601 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,601 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,604 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,604 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,604 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,604 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,605 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,605 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,614 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,614 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,615 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,615 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,627 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,627 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,627 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,628 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,640 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,640 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,640 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,641 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:14:09,671 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-12 00:14:09,695 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-12 00:14:09,695 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-12 00:14:09,696 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-12 00:14:09,696 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-12 00:14:09,696 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-12 00:14:09,696 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-12 00:14:09,696 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-12 00:14:09,697 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-12 00:14:09,716 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-09-12 00:14:09,719 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-12 00:14:09,768 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-12 00:14:09,769 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-12 00:14:09,776 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-12 00:14:09,779 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-12 00:14:09,802 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-12 00:14:09,802 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-12 00:14:09,803 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-12 00:14:09,805 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-12 00:14:09,806 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-12 00:14:11,083 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2315 [2020-09-12 00:14:11,083 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-12 00:14:11,088 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-09-12 00:14:11,125 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-09-12 00:14:11,128 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-12 00:14:11,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-12 00:14:11,138 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:14:11,139 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:14:11,140 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:14:11,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:14:11,154 INFO L82 PathProgramCache]: Analyzing trace with hash 385809968, now seen corresponding path program 1 times [2020-09-12 00:14:11,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:14:11,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488799342] [2020-09-12 00:14:11,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:14:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:14:11,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:14:11,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488799342] [2020-09-12 00:14:11,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:14:11,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-12 00:14:11,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1432162659] [2020-09-12 00:14:11,432 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:14:11,435 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:14:11,453 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-12 00:14:11,453 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:14:11,456 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:14:11,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-12 00:14:11,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:14:11,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-12 00:14:11,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-12 00:14:11,480 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-09-12 00:14:11,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:14:11,506 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-09-12 00:14:11,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-12 00:14:11,508 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-09-12 00:14:11,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:14:11,528 INFO L225 Difference]: With dead ends: 362 [2020-09-12 00:14:11,529 INFO L226 Difference]: Without dead ends: 298 [2020-09-12 00:14:11,530 INFO L675 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 [2020-09-12 00:14:11,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-12 00:14:11,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-09-12 00:14:11,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-12 00:14:11,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-09-12 00:14:11,615 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-09-12 00:14:11,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:14:11,617 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-09-12 00:14:11,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-12 00:14:11,617 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-09-12 00:14:11,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-12 00:14:11,619 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:14:11,619 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:14:11,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-12 00:14:11,620 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:14:11,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:14:11,620 INFO L82 PathProgramCache]: Analyzing trace with hash -924796273, now seen corresponding path program 1 times [2020-09-12 00:14:11,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:14:11,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240712934] [2020-09-12 00:14:11,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:14:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:14:11,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:14:11,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240712934] [2020-09-12 00:14:11,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:14:11,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-12 00:14:11,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1999880099] [2020-09-12 00:14:11,771 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:14:11,772 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:14:11,775 INFO L274 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-09-12 00:14:11,775 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:14:11,776 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:14:11,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-12 00:14:11,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:14:11,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-12 00:14:11,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-12 00:14:11,779 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-09-12 00:14:11,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:14:11,799 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-09-12 00:14:11,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-12 00:14:11,799 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-12 00:14:11,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:14:11,802 INFO L225 Difference]: With dead ends: 217 [2020-09-12 00:14:11,802 INFO L226 Difference]: Without dead ends: 217 [2020-09-12 00:14:11,803 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-12 00:14:11,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-09-12 00:14:11,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-09-12 00:14:11,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-09-12 00:14:11,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-09-12 00:14:11,833 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-09-12 00:14:11,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:14:11,834 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-09-12 00:14:11,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-12 00:14:11,834 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-09-12 00:14:11,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-12 00:14:11,836 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:14:11,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:14:11,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-12 00:14:11,837 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:14:11,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:14:11,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1123394358, now seen corresponding path program 1 times [2020-09-12 00:14:11,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:14:11,838 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969845472] [2020-09-12 00:14:11,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:14:11,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:14:11,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:14:11,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969845472] [2020-09-12 00:14:11,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:14:11,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-12 00:14:11,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1043181823] [2020-09-12 00:14:11,947 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:14:11,949 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:14:11,952 INFO L274 McrAutomatonBuilder]: Finished intersection with 25 states and 36 transitions. [2020-09-12 00:14:11,952 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:14:12,080 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2424#(<= ~__unbuffered_cnt~0 0)] [2020-09-12 00:14:12,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-12 00:14:12,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:14:12,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-12 00:14:12,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-12 00:14:12,081 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 5 states. [2020-09-12 00:14:12,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:14:12,116 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-09-12 00:14:12,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-12 00:14:12,117 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-12 00:14:12,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:14:12,118 INFO L225 Difference]: With dead ends: 136 [2020-09-12 00:14:12,118 INFO L226 Difference]: Without dead ends: 136 [2020-09-12 00:14:12,119 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-12 00:14:12,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-09-12 00:14:12,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-09-12 00:14:12,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-09-12 00:14:12,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-09-12 00:14:12,127 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-09-12 00:14:12,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:14:12,127 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-09-12 00:14:12,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-12 00:14:12,127 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-09-12 00:14:12,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-12 00:14:12,129 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:14:12,129 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:14:12,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-12 00:14:12,130 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:14:12,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:14:12,130 INFO L82 PathProgramCache]: Analyzing trace with hash -104701845, now seen corresponding path program 1 times [2020-09-12 00:14:12,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:14:12,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912468115] [2020-09-12 00:14:12,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:14:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:14:12,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:14:12,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912468115] [2020-09-12 00:14:12,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:14:12,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-12 00:14:12,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2031324893] [2020-09-12 00:14:12,206 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:14:12,208 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:14:12,212 INFO L274 McrAutomatonBuilder]: Finished intersection with 33 states and 49 transitions. [2020-09-12 00:14:12,212 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:14:12,407 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2838#(<= ~__unbuffered_cnt~0 0)] [2020-09-12 00:14:12,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-12 00:14:12,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:14:12,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-12 00:14:12,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-09-12 00:14:12,408 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 6 states. [2020-09-12 00:14:12,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:14:12,447 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-09-12 00:14:12,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-12 00:14:12,448 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-09-12 00:14:12,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:14:12,449 INFO L225 Difference]: With dead ends: 109 [2020-09-12 00:14:12,449 INFO L226 Difference]: Without dead ends: 109 [2020-09-12 00:14:12,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-09-12 00:14:12,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-12 00:14:12,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-09-12 00:14:12,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-12 00:14:12,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-09-12 00:14:12,455 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-09-12 00:14:12,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:14:12,456 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-09-12 00:14:12,456 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-12 00:14:12,456 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-09-12 00:14:12,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-12 00:14:12,458 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:14:12,458 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:14:12,458 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-12 00:14:12,459 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:14:12,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:14:12,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1786856379, now seen corresponding path program 1 times [2020-09-12 00:14:12,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:14:12,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22588031] [2020-09-12 00:14:12,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:14:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:14:12,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:14:12,574 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22588031] [2020-09-12 00:14:12,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:14:12,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-12 00:14:12,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1229160229] [2020-09-12 00:14:12,576 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:14:12,579 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:14:12,586 INFO L274 McrAutomatonBuilder]: Finished intersection with 50 states and 85 transitions. [2020-09-12 00:14:12,587 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:14:12,751 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:14:12,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-12 00:14:12,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:14:12,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-12 00:14:12,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-12 00:14:12,752 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 5 states. [2020-09-12 00:14:12,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:14:12,808 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-09-12 00:14:12,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-12 00:14:12,808 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-12 00:14:12,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:14:12,809 INFO L225 Difference]: With dead ends: 135 [2020-09-12 00:14:12,810 INFO L226 Difference]: Without dead ends: 55 [2020-09-12 00:14:12,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-12 00:14:12,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-12 00:14:12,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-09-12 00:14:12,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-12 00:14:12,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-09-12 00:14:12,820 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 18 [2020-09-12 00:14:12,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:14:12,820 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-09-12 00:14:12,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-12 00:14:12,820 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-09-12 00:14:12,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-12 00:14:12,821 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:14:12,822 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:14:12,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-12 00:14:12,826 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:14:12,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:14:12,827 INFO L82 PathProgramCache]: Analyzing trace with hash -442498565, now seen corresponding path program 2 times [2020-09-12 00:14:12,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:14:12,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471729503] [2020-09-12 00:14:12,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:14:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:14:12,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:14:12,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471729503] [2020-09-12 00:14:12,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:14:12,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-12 00:14:12,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1278661967] [2020-09-12 00:14:12,969 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:14:12,972 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:14:12,977 INFO L274 McrAutomatonBuilder]: Finished intersection with 23 states and 26 transitions. [2020-09-12 00:14:12,977 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:14:12,989 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:14:12,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-12 00:14:12,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:14:12,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-12 00:14:12,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-12 00:14:12,990 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 5 states. [2020-09-12 00:14:13,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:14:13,035 INFO L93 Difference]: Finished difference Result 75 states and 132 transitions. [2020-09-12 00:14:13,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-12 00:14:13,036 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-12 00:14:13,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:14:13,036 INFO L225 Difference]: With dead ends: 75 [2020-09-12 00:14:13,036 INFO L226 Difference]: Without dead ends: 37 [2020-09-12 00:14:13,037 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-12 00:14:13,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-09-12 00:14:13,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-09-12 00:14:13,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-12 00:14:13,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-09-12 00:14:13,041 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-09-12 00:14:13,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:14:13,041 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-09-12 00:14:13,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-12 00:14:13,042 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-09-12 00:14:13,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-12 00:14:13,044 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:14:13,044 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:14:13,044 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-12 00:14:13,045 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:14:13,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:14:13,045 INFO L82 PathProgramCache]: Analyzing trace with hash 21041593, now seen corresponding path program 3 times [2020-09-12 00:14:13,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:14:13,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702438367] [2020-09-12 00:14:13,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:14:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:14:13,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:14:13,146 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702438367] [2020-09-12 00:14:13,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:14:13,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-12 00:14:13,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1110774107] [2020-09-12 00:14:13,147 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:14:13,149 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:14:13,155 INFO L274 McrAutomatonBuilder]: Finished intersection with 29 states and 38 transitions. [2020-09-12 00:14:13,155 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:14:13,184 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:14:13,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-12 00:14:13,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:14:13,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-12 00:14:13,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-12 00:14:13,186 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2020-09-12 00:14:13,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:14:13,212 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-09-12 00:14:13,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-12 00:14:13,213 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-12 00:14:13,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:14:13,213 INFO L225 Difference]: With dead ends: 36 [2020-09-12 00:14:13,213 INFO L226 Difference]: Without dead ends: 0 [2020-09-12 00:14:13,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-12 00:14:13,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-12 00:14:13,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-12 00:14:13,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-12 00:14:13,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-12 00:14:13,215 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-09-12 00:14:13,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:14:13,216 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-12 00:14:13,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-12 00:14:13,216 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-12 00:14:13,216 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-12 00:14:13,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-12 00:14:13,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 12:14:13 BasicIcfg [2020-09-12 00:14:13,222 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-12 00:14:13,226 INFO L168 Benchmark]: Toolchain (without parser) took 5074.23 ms. Allocated memory was 145.2 MB in the beginning and 250.6 MB in the end (delta: 105.4 MB). Free memory was 98.7 MB in the beginning and 169.1 MB in the end (delta: -70.4 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. [2020-09-12 00:14:13,227 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 145.2 MB. Free memory was 118.5 MB in the beginning and 118.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-12 00:14:13,228 INFO L168 Benchmark]: CACSL2BoogieTranslator took 799.40 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 98.0 MB in the beginning and 158.2 MB in the end (delta: -60.2 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-09-12 00:14:13,229 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.53 ms. Allocated memory is still 201.9 MB. Free memory was 158.2 MB in the beginning and 156.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-12 00:14:13,230 INFO L168 Benchmark]: Boogie Preprocessor took 41.34 ms. Allocated memory is still 201.9 MB. Free memory was 156.2 MB in the beginning and 154.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-12 00:14:13,231 INFO L168 Benchmark]: RCFGBuilder took 447.89 ms. Allocated memory is still 201.9 MB. Free memory was 154.8 MB in the beginning and 132.4 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-09-12 00:14:13,232 INFO L168 Benchmark]: TraceAbstraction took 3717.90 ms. Allocated memory was 201.9 MB in the beginning and 250.6 MB in the end (delta: 48.8 MB). Free memory was 131.7 MB in the beginning and 169.1 MB in the end (delta: -37.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2020-09-12 00:14:13,236 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 145.2 MB. Free memory was 118.5 MB in the beginning and 118.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 799.40 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 98.0 MB in the beginning and 158.2 MB in the end (delta: -60.2 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.53 ms. Allocated memory is still 201.9 MB. Free memory was 158.2 MB in the beginning and 156.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.34 ms. Allocated memory is still 201.9 MB. Free memory was 156.2 MB in the beginning and 154.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 447.89 ms. Allocated memory is still 201.9 MB. Free memory was 154.8 MB in the beginning and 132.4 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3717.90 ms. Allocated memory was 201.9 MB in the beginning and 250.6 MB in the end (delta: 48.8 MB). Free memory was 131.7 MB in the beginning and 169.1 MB in the end (delta: -37.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 640 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2315 CheckedPairsTotal, 57 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 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.5s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 138 SDtfs, 82 SDslu, 227 SDs, 0 SdLazy, 64 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 159 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 3491 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...