/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 15:41:35,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 15:41:35,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 15:41:35,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 15:41:35,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 15:41:35,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 15:41:35,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 15:41:35,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 15:41:35,581 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 15:41:35,582 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 15:41:35,583 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 15:41:35,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 15:41:35,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 15:41:35,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 15:41:35,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 15:41:35,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 15:41:35,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 15:41:35,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 15:41:35,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 15:41:35,593 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 15:41:35,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 15:41:35,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 15:41:35,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 15:41:35,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 15:41:35,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-11 15:41:35,607 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-11 15:41:35,608 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-11 15:41:35,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-11 15:41:35,612 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-11 15:41:35,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-11 15:41:35,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 15:41:35,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 15:41:35,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 15:41:35,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 15:41:35,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 15:41:35,620 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 15:41:35,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 15:41:35,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 15:41:35,621 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 15:41:35,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 15:41:35,632 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 15:41:35,633 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-11 15:41:35,687 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 15:41:35,687 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 15:41:35,691 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 15:41:35,691 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 15:41:35,691 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 15:41:35,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 15:41:35,692 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 15:41:35,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 15:41:35,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 15:41:35,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 15:41:35,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 15:41:35,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 15:41:35,694 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 15:41:35,694 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 15:41:35,695 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 15:41:35,695 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 15:41:35,695 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 15:41:35,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 15:41:35,696 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 15:41:35,696 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 15:41:35,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 15:41:35,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 15:41:35,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 15:41:35,698 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-11 15:41:35,699 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 15:41:35,699 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 15:41:35,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 15:41:35,699 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 15:41:35,701 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-11 15:41:35,701 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-11 15:41:36,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 15:41:36,201 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 15:41:36,205 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 15:41:36,207 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 15:41:36,207 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 15:41:36,208 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-09-11 15:41:36,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63ea4c522/f754447054ed4984a00bfba9b31c9335/FLAG80fdaddec [2020-09-11 15:41:36,981 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 15:41:36,982 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-09-11 15:41:36,999 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63ea4c522/f754447054ed4984a00bfba9b31c9335/FLAG80fdaddec [2020-09-11 15:41:37,232 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63ea4c522/f754447054ed4984a00bfba9b31c9335 [2020-09-11 15:41:37,246 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 15:41:37,252 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 15:41:37,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 15:41:37,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 15:41:37,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 15:41:37,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:41:37" (1/1) ... [2020-09-11 15:41:37,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e8d4bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:37, skipping insertion in model container [2020-09-11 15:41:37,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:41:37" (1/1) ... [2020-09-11 15:41:37,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 15:41:37,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 15:41:37,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:41:37,941 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 15:41:37,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:41:38,077 INFO L208 MainTranslator]: Completed translation [2020-09-11 15:41:38,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:38 WrapperNode [2020-09-11 15:41:38,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 15:41:38,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 15:41:38,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 15:41:38,080 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 15:41:38,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:38" (1/1) ... [2020-09-11 15:41:38,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:38" (1/1) ... [2020-09-11 15:41:38,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 15:41:38,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 15:41:38,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 15:41:38,146 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 15:41:38,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:38" (1/1) ... [2020-09-11 15:41:38,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:38" (1/1) ... [2020-09-11 15:41:38,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:38" (1/1) ... [2020-09-11 15:41:38,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:38" (1/1) ... [2020-09-11 15:41:38,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:38" (1/1) ... [2020-09-11 15:41:38,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:38" (1/1) ... [2020-09-11 15:41:38,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:38" (1/1) ... [2020-09-11 15:41:38,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 15:41:38,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 15:41:38,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 15:41:38,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 15:41:38,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:38" (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 [2020-09-11 15:41:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 15:41:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-11 15:41:38,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 15:41:38,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 15:41:38,266 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-11 15:41:38,266 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-11 15:41:38,266 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-11 15:41:38,267 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-11 15:41:38,267 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-11 15:41:38,267 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-11 15:41:38,267 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-09-11 15:41:38,267 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-09-11 15:41:38,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-11 15:41:38,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 15:41:38,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 15:41:38,271 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-11 15:41:38,698 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 15:41:38,698 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-11 15:41:38,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:41:38 BoogieIcfgContainer [2020-09-11 15:41:38,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 15:41:38,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 15:41:38,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 15:41:38,710 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 15:41:38,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 03:41:37" (1/3) ... [2020-09-11 15:41:38,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b19cb68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:41:38, skipping insertion in model container [2020-09-11 15:41:38,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:38" (2/3) ... [2020-09-11 15:41:38,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b19cb68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:41:38, skipping insertion in model container [2020-09-11 15:41:38,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:41:38" (3/3) ... [2020-09-11 15:41:38,715 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_tso.oepc.i [2020-09-11 15:41:38,727 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 15:41:38,727 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-11 15:41:38,738 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-11 15:41:38,739 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 15:41:38,773 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,774 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,774 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,774 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,774 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,775 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,776 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,776 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,776 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,776 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,777 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,777 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,777 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,778 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,778 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,778 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,779 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,779 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,779 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,779 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,780 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,780 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,785 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,785 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,785 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,786 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,795 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,795 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,795 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,796 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,799 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,800 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,800 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,800 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,803 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,803 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,803 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,804 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:38,828 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-11 15:41:38,852 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 15:41:38,852 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 15:41:38,852 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-11 15:41:38,852 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-11 15:41:38,853 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 15:41:38,853 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 15:41:38,853 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 15:41:38,853 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 15:41:38,872 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 184 flow [2020-09-11 15:41:38,874 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-09-11 15:41:38,925 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-09-11 15:41:38,925 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:41:38,932 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-11 15:41:38,936 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-09-11 15:41:38,966 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-09-11 15:41:38,967 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:41:38,968 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-11 15:41:38,971 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-09-11 15:41:38,972 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-11 15:41:40,706 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2807 [2020-09-11 15:41:40,706 INFO L214 etLargeBlockEncoding]: Total number of compositions: 63 [2020-09-11 15:41:40,711 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-09-11 15:41:40,772 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-09-11 15:41:40,775 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-09-11 15:41:40,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-11 15:41:40,787 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:40,788 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:40,788 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:40,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:40,797 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 1 times [2020-09-11 15:41:40,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:40,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886960089] [2020-09-11 15:41:40,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:41,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:41,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886960089] [2020-09-11 15:41:41,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:41,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:41:41,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203468008] [2020-09-11 15:41:41,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-11 15:41:41,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:41,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-11 15:41:41,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-11 15:41:41,097 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-09-11 15:41:41,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:41,153 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-09-11 15:41:41,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-11 15:41:41,155 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-09-11 15:41:41,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:41,189 INFO L225 Difference]: With dead ends: 850 [2020-09-11 15:41:41,189 INFO L226 Difference]: Without dead ends: 706 [2020-09-11 15:41:41,191 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 [2020-09-11 15:41:41,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-09-11 15:41:41,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-09-11 15:41:41,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-09-11 15:41:41,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-09-11 15:41:41,353 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-09-11 15:41:41,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:41,354 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-09-11 15:41:41,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-11 15:41:41,355 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-09-11 15:41:41,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-11 15:41:41,357 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:41,357 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:41,358 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 15:41:41,358 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:41,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:41,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 1 times [2020-09-11 15:41:41,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:41,359 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090305547] [2020-09-11 15:41:41,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:41,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:41,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:41,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090305547] [2020-09-11 15:41:41,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:41,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:41:41,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533433681] [2020-09-11 15:41:41,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:41:41,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:41,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:41:41,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:41:41,518 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-09-11 15:41:41,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:41,560 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions. [2020-09-11 15:41:41,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 15:41:41,560 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-11 15:41:41,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:41,567 INFO L225 Difference]: With dead ends: 778 [2020-09-11 15:41:41,567 INFO L226 Difference]: Without dead ends: 634 [2020-09-11 15:41:41,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:41:41,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-09-11 15:41:41,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-09-11 15:41:41,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-09-11 15:41:41,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions. [2020-09-11 15:41:41,595 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11 [2020-09-11 15:41:41,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:41,596 INFO L479 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions. [2020-09-11 15:41:41,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:41:41,596 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions. [2020-09-11 15:41:41,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-11 15:41:41,599 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:41,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:41,599 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 15:41:41,599 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:41,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:41,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1606888751, now seen corresponding path program 1 times [2020-09-11 15:41:41,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:41,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14167238] [2020-09-11 15:41:41,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:41,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:41,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14167238] [2020-09-11 15:41:41,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:41,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:41:41,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877843601] [2020-09-11 15:41:41,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:41:41,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:41,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:41:41,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:41:41,735 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 4 states. [2020-09-11 15:41:41,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:41,764 INFO L93 Difference]: Finished difference Result 688 states and 2256 transitions. [2020-09-11 15:41:41,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 15:41:41,765 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-11 15:41:41,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:41,770 INFO L225 Difference]: With dead ends: 688 [2020-09-11 15:41:41,770 INFO L226 Difference]: Without dead ends: 580 [2020-09-11 15:41:41,771 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:41:41,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-09-11 15:41:41,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-09-11 15:41:41,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-09-11 15:41:41,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 1932 transitions. [2020-09-11 15:41:41,794 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 1932 transitions. Word has length 12 [2020-09-11 15:41:41,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:41,794 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 1932 transitions. [2020-09-11 15:41:41,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:41:41,794 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 1932 transitions. [2020-09-11 15:41:41,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-11 15:41:41,796 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:41,797 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:41,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 15:41:41,797 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:41,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:41,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1718865431, now seen corresponding path program 1 times [2020-09-11 15:41:41,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:41,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127494198] [2020-09-11 15:41:41,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:41,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:41,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127494198] [2020-09-11 15:41:41,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:41,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:41:41,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848587076] [2020-09-11 15:41:41,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:41:41,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:41,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:41:41,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:41:41,883 INFO L87 Difference]: Start difference. First operand 580 states and 1932 transitions. Second operand 5 states. [2020-09-11 15:41:41,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:41,948 INFO L93 Difference]: Finished difference Result 799 states and 2597 transitions. [2020-09-11 15:41:41,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 15:41:41,949 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-11 15:41:41,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:41,953 INFO L225 Difference]: With dead ends: 799 [2020-09-11 15:41:41,953 INFO L226 Difference]: Without dead ends: 430 [2020-09-11 15:41:41,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-11 15:41:41,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-09-11 15:41:41,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2020-09-11 15:41:41,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-09-11 15:41:41,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 1344 transitions. [2020-09-11 15:41:41,970 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 1344 transitions. Word has length 13 [2020-09-11 15:41:41,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:41,970 INFO L479 AbstractCegarLoop]: Abstraction has 430 states and 1344 transitions. [2020-09-11 15:41:41,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:41:41,971 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 1344 transitions. [2020-09-11 15:41:41,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-11 15:41:41,972 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:41,973 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:41,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-11 15:41:41,973 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:41,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:41,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1251334402, now seen corresponding path program 1 times [2020-09-11 15:41:41,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:41,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832589815] [2020-09-11 15:41:41,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:42,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:42,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:42,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832589815] [2020-09-11 15:41:42,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:42,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:41:42,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325030952] [2020-09-11 15:41:42,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:41:42,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:42,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:41:42,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:41:42,085 INFO L87 Difference]: Start difference. First operand 430 states and 1344 transitions. Second operand 5 states. [2020-09-11 15:41:42,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:42,136 INFO L93 Difference]: Finished difference Result 556 states and 1707 transitions. [2020-09-11 15:41:42,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 15:41:42,137 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-11 15:41:42,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:42,139 INFO L225 Difference]: With dead ends: 556 [2020-09-11 15:41:42,140 INFO L226 Difference]: Without dead ends: 262 [2020-09-11 15:41:42,140 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-11 15:41:42,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-09-11 15:41:42,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-09-11 15:41:42,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-11 15:41:42,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 771 transitions. [2020-09-11 15:41:42,149 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 771 transitions. Word has length 14 [2020-09-11 15:41:42,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:42,150 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 771 transitions. [2020-09-11 15:41:42,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:41:42,150 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 771 transitions. [2020-09-11 15:41:42,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-11 15:41:42,151 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:42,151 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:42,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-11 15:41:42,151 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:42,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:42,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 1 times [2020-09-11 15:41:42,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:42,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432257357] [2020-09-11 15:41:42,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:42,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:42,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:42,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432257357] [2020-09-11 15:41:42,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:42,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:41:42,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443584258] [2020-09-11 15:41:42,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:41:42,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:42,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:41:42,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:41:42,248 INFO L87 Difference]: Start difference. First operand 262 states and 771 transitions. Second operand 4 states. [2020-09-11 15:41:42,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:42,310 INFO L93 Difference]: Finished difference Result 319 states and 873 transitions. [2020-09-11 15:41:42,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 15:41:42,311 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-09-11 15:41:42,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:42,313 INFO L225 Difference]: With dead ends: 319 [2020-09-11 15:41:42,314 INFO L226 Difference]: Without dead ends: 238 [2020-09-11 15:41:42,314 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:41:42,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-09-11 15:41:42,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-09-11 15:41:42,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-09-11 15:41:42,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 659 transitions. [2020-09-11 15:41:42,323 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 659 transitions. Word has length 15 [2020-09-11 15:41:42,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:42,324 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 659 transitions. [2020-09-11 15:41:42,324 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:41:42,324 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 659 transitions. [2020-09-11 15:41:42,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-11 15:41:42,325 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:42,325 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:42,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-11 15:41:42,326 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:42,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:42,326 INFO L82 PathProgramCache]: Analyzing trace with hash -857649028, now seen corresponding path program 1 times [2020-09-11 15:41:42,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:42,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480069199] [2020-09-11 15:41:42,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:42,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:42,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:42,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480069199] [2020-09-11 15:41:42,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:42,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-11 15:41:42,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146623133] [2020-09-11 15:41:42,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:41:42,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:42,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:41:42,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:41:42,461 INFO L87 Difference]: Start difference. First operand 238 states and 659 transitions. Second operand 5 states. [2020-09-11 15:41:42,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:42,521 INFO L93 Difference]: Finished difference Result 247 states and 617 transitions. [2020-09-11 15:41:42,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 15:41:42,522 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-11 15:41:42,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:42,523 INFO L225 Difference]: With dead ends: 247 [2020-09-11 15:41:42,523 INFO L226 Difference]: Without dead ends: 182 [2020-09-11 15:41:42,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-11 15:41:42,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-09-11 15:41:42,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-09-11 15:41:42,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-11 15:41:42,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 443 transitions. [2020-09-11 15:41:42,530 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 443 transitions. Word has length 16 [2020-09-11 15:41:42,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:42,530 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 443 transitions. [2020-09-11 15:41:42,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:41:42,531 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 443 transitions. [2020-09-11 15:41:42,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-11 15:41:42,532 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:42,532 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:42,532 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-11 15:41:42,532 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:42,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:42,532 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 1 times [2020-09-11 15:41:42,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:42,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037685256] [2020-09-11 15:41:42,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:42,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:42,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037685256] [2020-09-11 15:41:42,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:42,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-11 15:41:42,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870267421] [2020-09-11 15:41:42,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-11 15:41:42,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:42,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-11 15:41:42,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-11 15:41:42,628 INFO L87 Difference]: Start difference. First operand 182 states and 443 transitions. Second operand 6 states. [2020-09-11 15:41:42,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:42,695 INFO L93 Difference]: Finished difference Result 165 states and 373 transitions. [2020-09-11 15:41:42,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-11 15:41:42,696 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-09-11 15:41:42,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:42,697 INFO L225 Difference]: With dead ends: 165 [2020-09-11 15:41:42,698 INFO L226 Difference]: Without dead ends: 132 [2020-09-11 15:41:42,698 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-11 15:41:42,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-09-11 15:41:42,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-09-11 15:41:42,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-09-11 15:41:42,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 295 transitions. [2020-09-11 15:41:42,703 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 295 transitions. Word has length 17 [2020-09-11 15:41:42,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:42,703 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 295 transitions. [2020-09-11 15:41:42,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-11 15:41:42,703 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2020-09-11 15:41:42,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-11 15:41:42,721 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:42,721 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:42,721 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-11 15:41:42,721 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:42,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:42,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 1 times [2020-09-11 15:41:42,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:42,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005464613] [2020-09-11 15:41:42,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:42,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:42,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:42,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005464613] [2020-09-11 15:41:42,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:42,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-11 15:41:42,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618637571] [2020-09-11 15:41:42,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-11 15:41:42,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:42,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-11 15:41:42,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-11 15:41:42,828 INFO L87 Difference]: Start difference. First operand 132 states and 295 transitions. Second operand 7 states. [2020-09-11 15:41:42,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:42,899 INFO L93 Difference]: Finished difference Result 121 states and 271 transitions. [2020-09-11 15:41:42,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-11 15:41:42,900 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-11 15:41:42,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:42,901 INFO L225 Difference]: With dead ends: 121 [2020-09-11 15:41:42,901 INFO L226 Difference]: Without dead ends: 112 [2020-09-11 15:41:42,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-11 15:41:42,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-11 15:41:42,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-09-11 15:41:42,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-09-11 15:41:42,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-09-11 15:41:42,906 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 19 [2020-09-11 15:41:42,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:42,906 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-09-11 15:41:42,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-11 15:41:42,907 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-09-11 15:41:42,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-11 15:41:42,907 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:42,908 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, 1] [2020-09-11 15:41:42,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-11 15:41:42,908 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:42,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:42,908 INFO L82 PathProgramCache]: Analyzing trace with hash 188961609, now seen corresponding path program 1 times [2020-09-11 15:41:42,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:42,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713176453] [2020-09-11 15:41:42,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:42,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:42,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:42,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713176453] [2020-09-11 15:41:42,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:42,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-11 15:41:42,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074487092] [2020-09-11 15:41:42,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:41:42,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:42,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:41:42,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:41:42,977 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 5 states. [2020-09-11 15:41:43,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:43,012 INFO L93 Difference]: Finished difference Result 146 states and 329 transitions. [2020-09-11 15:41:43,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 15:41:43,013 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-09-11 15:41:43,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:43,014 INFO L225 Difference]: With dead ends: 146 [2020-09-11 15:41:43,014 INFO L226 Difference]: Without dead ends: 52 [2020-09-11 15:41:43,014 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-11 15:41:43,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-11 15:41:43,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-09-11 15:41:43,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-11 15:41:43,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-09-11 15:41:43,017 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 21 [2020-09-11 15:41:43,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:43,018 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-09-11 15:41:43,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:41:43,018 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-09-11 15:41:43,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-11 15:41:43,019 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:43,019 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, 1] [2020-09-11 15:41:43,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-11 15:41:43,019 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:43,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:43,020 INFO L82 PathProgramCache]: Analyzing trace with hash -62971415, now seen corresponding path program 2 times [2020-09-11 15:41:43,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:43,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463925113] [2020-09-11 15:41:43,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:43,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:43,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463925113] [2020-09-11 15:41:43,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:43,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-11 15:41:43,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716159423] [2020-09-11 15:41:43,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:41:43,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:43,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:41:43,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:41:43,086 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 5 states. [2020-09-11 15:41:43,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:43,110 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-09-11 15:41:43,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 15:41:43,110 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-09-11 15:41:43,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:43,110 INFO L225 Difference]: With dead ends: 51 [2020-09-11 15:41:43,110 INFO L226 Difference]: Without dead ends: 0 [2020-09-11 15:41:43,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-11 15:41:43,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-11 15:41:43,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-11 15:41:43,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-11 15:41:43,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-11 15:41:43,112 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-09-11 15:41:43,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:43,112 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-11 15:41:43,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:41:43,112 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-11 15:41:43,113 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-11 15:41:43,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-11 15:41:43,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 03:41:43 BasicIcfg [2020-09-11 15:41:43,118 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 15:41:43,121 INFO L168 Benchmark]: Toolchain (without parser) took 5871.73 ms. Allocated memory was 139.5 MB in the beginning and 293.1 MB in the end (delta: 153.6 MB). Free memory was 101.3 MB in the beginning and 201.9 MB in the end (delta: -100.5 MB). Peak memory consumption was 53.1 MB. Max. memory is 7.1 GB. [2020-09-11 15:41:43,122 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-11 15:41:43,123 INFO L168 Benchmark]: CACSL2BoogieTranslator took 825.28 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 100.7 MB in the beginning and 160.8 MB in the end (delta: -60.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2020-09-11 15:41:43,124 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.69 ms. Allocated memory is still 202.9 MB. Free memory was 160.2 MB in the beginning and 158.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-11 15:41:43,125 INFO L168 Benchmark]: Boogie Preprocessor took 32.16 ms. Allocated memory is still 202.9 MB. Free memory was 158.2 MB in the beginning and 156.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-11 15:41:43,125 INFO L168 Benchmark]: RCFGBuilder took 526.52 ms. Allocated memory is still 202.9 MB. Free memory was 156.8 MB in the beginning and 132.5 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-09-11 15:41:43,126 INFO L168 Benchmark]: TraceAbstraction took 4412.01 ms. Allocated memory was 202.9 MB in the beginning and 293.1 MB in the end (delta: 90.2 MB). Free memory was 131.9 MB in the beginning and 201.9 MB in the end (delta: -70.0 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-09-11 15:41:43,130 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 825.28 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 100.7 MB in the beginning and 160.8 MB in the end (delta: -60.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 65.69 ms. Allocated memory is still 202.9 MB. Free memory was 160.2 MB in the beginning and 158.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.16 ms. Allocated memory is still 202.9 MB. Free memory was 158.2 MB in the beginning and 156.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 526.52 ms. Allocated memory is still 202.9 MB. Free memory was 156.8 MB in the beginning and 132.5 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4412.01 ms. Allocated memory was 202.9 MB in the beginning and 293.1 MB in the end (delta: 90.2 MB). Free memory was 131.9 MB in the beginning and 201.9 MB in the end (delta: -70.0 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.8s, 93 ProgramPointsBefore, 39 ProgramPointsAfterwards, 82 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 945 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2807 CheckedPairsTotal, 63 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, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 267 SDtfs, 301 SDslu, 479 SDs, 0 SdLazy, 217 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred 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: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 6930 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...