/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/safe024_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-16 00:23:25,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-16 00:23:25,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-16 00:23:25,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-16 00:23:25,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-16 00:23:25,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-16 00:23:25,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-16 00:23:25,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-16 00:23:25,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-16 00:23:25,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-16 00:23:25,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-16 00:23:25,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-16 00:23:25,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-16 00:23:25,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-16 00:23:25,794 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-16 00:23:25,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-16 00:23:25,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-16 00:23:25,801 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-16 00:23:25,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-16 00:23:25,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-16 00:23:25,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-16 00:23:25,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-16 00:23:25,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-16 00:23:25,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-16 00:23:25,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-16 00:23:25,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-16 00:23:25,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-16 00:23:25,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-16 00:23:25,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-16 00:23:25,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-16 00:23:25,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-16 00:23:25,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-16 00:23:25,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-16 00:23:25,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-16 00:23:25,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-16 00:23:25,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-16 00:23:25,846 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 [2020-09-16 00:23:25,893 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-16 00:23:25,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-16 00:23:25,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-16 00:23:25,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-16 00:23:25,896 INFO L138 SettingsManager]: * Use SBE=true [2020-09-16 00:23:25,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-16 00:23:25,897 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-16 00:23:25,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-16 00:23:25,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-16 00:23:25,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-16 00:23:25,899 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-16 00:23:25,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-16 00:23:25,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-16 00:23:25,900 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-16 00:23:25,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-16 00:23:25,900 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-16 00:23:25,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-16 00:23:25,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-16 00:23:25,901 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-16 00:23:25,901 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-16 00:23:25,902 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-16 00:23:25,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-16 00:23:25,902 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-16 00:23:25,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-16 00:23:25,903 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-16 00:23:25,903 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-16 00:23:25,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-16 00:23:25,903 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-16 00:23:25,903 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-16 00:23:25,904 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-16 00:23:25,904 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-16 00:23:26,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-16 00:23:26,391 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-16 00:23:26,395 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-16 00:23:26,397 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-16 00:23:26,397 INFO L275 PluginConnector]: CDTParser initialized [2020-09-16 00:23:26,398 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.oepc.i [2020-09-16 00:23:26,478 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f5ebba30/16b98e6cbabd4d33942c8b78eba7fed2/FLAGedbcecbf0 [2020-09-16 00:23:27,085 INFO L306 CDTParser]: Found 1 translation units. [2020-09-16 00:23:27,086 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe024_tso.oepc.i [2020-09-16 00:23:27,103 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f5ebba30/16b98e6cbabd4d33942c8b78eba7fed2/FLAGedbcecbf0 [2020-09-16 00:23:27,335 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f5ebba30/16b98e6cbabd4d33942c8b78eba7fed2 [2020-09-16 00:23:27,347 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-16 00:23:27,352 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-16 00:23:27,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-16 00:23:27,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-16 00:23:27,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-16 00:23:27,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 12:23:27" (1/1) ... [2020-09-16 00:23:27,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b4291c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:23:27, skipping insertion in model container [2020-09-16 00:23:27,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 12:23:27" (1/1) ... [2020-09-16 00:23:27,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-16 00:23:27,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-16 00:23:28,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 00:23:28,023 INFO L203 MainTranslator]: Completed pre-run [2020-09-16 00:23:28,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 00:23:28,193 INFO L208 MainTranslator]: Completed translation [2020-09-16 00:23:28,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:23:28 WrapperNode [2020-09-16 00:23:28,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-16 00:23:28,195 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-16 00:23:28,195 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-16 00:23:28,195 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-16 00:23:28,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:23:28" (1/1) ... [2020-09-16 00:23:28,227 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:23:28" (1/1) ... [2020-09-16 00:23:28,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-16 00:23:28,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-16 00:23:28,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-16 00:23:28,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-16 00:23:28,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:23:28" (1/1) ... [2020-09-16 00:23:28,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:23:28" (1/1) ... [2020-09-16 00:23:28,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:23:28" (1/1) ... [2020-09-16 00:23:28,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:23:28" (1/1) ... [2020-09-16 00:23:28,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:23:28" (1/1) ... [2020-09-16 00:23:28,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:23:28" (1/1) ... [2020-09-16 00:23:28,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:23:28" (1/1) ... [2020-09-16 00:23:28,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-16 00:23:28,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-16 00:23:28,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-16 00:23:28,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-16 00:23:28,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:23:28" (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 [2020-09-16 00:23:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-16 00:23:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-16 00:23:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-16 00:23:28,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-16 00:23:28,396 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-16 00:23:28,396 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-16 00:23:28,396 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-16 00:23:28,396 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-16 00:23:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-16 00:23:28,397 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-16 00:23:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-16 00:23:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-16 00:23:28,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-16 00:23:28,400 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-16 00:23:28,822 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-16 00:23:28,823 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-16 00:23:28,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 12:23:28 BoogieIcfgContainer [2020-09-16 00:23:28,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-16 00:23:28,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-16 00:23:28,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-16 00:23:28,834 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-16 00:23:28,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 12:23:27" (1/3) ... [2020-09-16 00:23:28,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65efab50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 12:23:28, skipping insertion in model container [2020-09-16 00:23:28,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:23:28" (2/3) ... [2020-09-16 00:23:28,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65efab50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 12:23:28, skipping insertion in model container [2020-09-16 00:23:28,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 12:23:28" (3/3) ... [2020-09-16 00:23:28,838 INFO L109 eAbstractionObserver]: Analyzing ICFG safe024_tso.oepc.i [2020-09-16 00:23:28,850 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-16 00:23:28,850 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-16 00:23:28,862 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-16 00:23:28,863 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-16 00:23:28,892 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,893 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,893 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,893 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,894 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,894 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,894 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,895 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,895 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,895 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,895 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,896 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,896 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,896 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,897 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,897 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,897 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,898 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,902 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,903 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,903 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,903 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,912 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,912 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,913 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,915 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,916 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,916 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,916 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:23:28,940 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-16 00:23:28,969 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-16 00:23:28,970 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-16 00:23:28,970 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-16 00:23:28,970 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-16 00:23:28,970 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-16 00:23:28,970 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-16 00:23:28,971 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-16 00:23:28,971 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-16 00:23:28,992 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-09-16 00:23:28,995 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-16 00:23:29,049 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-16 00:23:29,049 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-16 00:23:29,058 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 51 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. [2020-09-16 00:23:29,061 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-16 00:23:29,082 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-16 00:23:29,083 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-16 00:23:29,083 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 51 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. [2020-09-16 00:23:29,086 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-16 00:23:29,087 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-16 00:23:30,678 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2585 [2020-09-16 00:23:30,679 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-16 00:23:30,683 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-09-16 00:23:30,711 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-09-16 00:23:30,713 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-16 00:23:30,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-16 00:23:30,723 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:23:30,724 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:23:30,725 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:23:30,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:23:30,732 INFO L82 PathProgramCache]: Analyzing trace with hash -595431234, now seen corresponding path program 1 times [2020-09-16 00:23:30,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:23:30,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729843189] [2020-09-16 00:23:30,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:23:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:23:31,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:23:31,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729843189] [2020-09-16 00:23:31,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:23:31,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-16 00:23:31,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [691546599] [2020-09-16 00:23:31,026 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:23:31,030 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:23:31,048 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-16 00:23:31,049 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:23:31,051 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:23:31,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-16 00:23:31,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:23:31,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-16 00:23:31,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 00:23:31,074 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-09-16 00:23:31,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:23:31,115 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-09-16 00:23:31,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-16 00:23:31,117 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-16 00:23:31,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:23:31,135 INFO L225 Difference]: With dead ends: 282 [2020-09-16 00:23:31,136 INFO L226 Difference]: Without dead ends: 218 [2020-09-16 00:23:31,137 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 00:23:31,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-09-16 00:23:31,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-09-16 00:23:31,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-16 00:23:31,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-09-16 00:23:31,209 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-09-16 00:23:31,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:23:31,210 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-09-16 00:23:31,211 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-16 00:23:31,211 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-09-16 00:23:31,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-16 00:23:31,212 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:23:31,212 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:23:31,213 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-16 00:23:31,213 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:23:31,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:23:31,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1278499900, now seen corresponding path program 1 times [2020-09-16 00:23:31,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:23:31,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333823076] [2020-09-16 00:23:31,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:23:31,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:23:31,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:23:31,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333823076] [2020-09-16 00:23:31,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:23:31,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 00:23:31,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1007520422] [2020-09-16 00:23:31,309 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:23:31,310 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:23:31,312 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-09-16 00:23:31,312 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:23:31,329 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:23:31,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-16 00:23:31,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:23:31,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-16 00:23:31,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-16 00:23:31,332 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-09-16 00:23:31,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:23:31,359 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-09-16 00:23:31,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-16 00:23:31,361 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-16 00:23:31,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:23:31,363 INFO L225 Difference]: With dead ends: 242 [2020-09-16 00:23:31,363 INFO L226 Difference]: Without dead ends: 146 [2020-09-16 00:23:31,364 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 [2020-09-16 00:23:31,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-09-16 00:23:31,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-09-16 00:23:31,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-16 00:23:31,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-09-16 00:23:31,377 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-09-16 00:23:31,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:23:31,378 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-09-16 00:23:31,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-16 00:23:31,378 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-09-16 00:23:31,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-16 00:23:31,380 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:23:31,380 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:23:31,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-16 00:23:31,380 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:23:31,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:23:31,381 INFO L82 PathProgramCache]: Analyzing trace with hash -453706064, now seen corresponding path program 1 times [2020-09-16 00:23:31,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:23:31,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427680982] [2020-09-16 00:23:31,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:23:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:23:31,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:23:31,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427680982] [2020-09-16 00:23:31,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:23:31,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 00:23:31,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2125026166] [2020-09-16 00:23:31,560 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:23:31,561 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:23:31,582 INFO L274 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-09-16 00:23:31,582 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:23:31,613 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:23:31,650 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:23:31,671 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:23:31,695 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1943#(not (= 3 ~__unbuffered_cnt~0))] [2020-09-16 00:23:31,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 00:23:31,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:23:31,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 00:23:31,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-16 00:23:31,696 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 5 states. [2020-09-16 00:23:31,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:23:31,792 INFO L93 Difference]: Finished difference Result 137 states and 312 transitions. [2020-09-16 00:23:31,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-16 00:23:31,793 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-09-16 00:23:31,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:23:31,796 INFO L225 Difference]: With dead ends: 137 [2020-09-16 00:23:31,796 INFO L226 Difference]: Without dead ends: 97 [2020-09-16 00:23:31,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-16 00:23:31,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-09-16 00:23:31,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-09-16 00:23:31,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-09-16 00:23:31,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-09-16 00:23:31,813 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 11 [2020-09-16 00:23:31,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:23:31,814 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-09-16 00:23:31,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 00:23:31,814 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-09-16 00:23:31,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-16 00:23:31,815 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:23:31,815 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:23:31,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-16 00:23:31,816 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:23:31,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:23:31,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1770525280, now seen corresponding path program 1 times [2020-09-16 00:23:31,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:23:31,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160647661] [2020-09-16 00:23:31,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:23:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:23:31,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:23:31,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160647661] [2020-09-16 00:23:31,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:23:31,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-16 00:23:31,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [882184076] [2020-09-16 00:23:31,969 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:23:31,970 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:23:31,973 INFO L274 McrAutomatonBuilder]: Finished intersection with 23 states and 30 transitions. [2020-09-16 00:23:31,973 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:23:32,020 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2285#(<= ~__unbuffered_cnt~0 0)] [2020-09-16 00:23:32,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-16 00:23:32,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:23:32,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-16 00:23:32,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-16 00:23:32,022 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 7 states. [2020-09-16 00:23:32,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:23:32,093 INFO L93 Difference]: Finished difference Result 92 states and 190 transitions. [2020-09-16 00:23:32,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-16 00:23:32,094 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-09-16 00:23:32,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:23:32,095 INFO L225 Difference]: With dead ends: 92 [2020-09-16 00:23:32,095 INFO L226 Difference]: Without dead ends: 84 [2020-09-16 00:23:32,096 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-16 00:23:32,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-09-16 00:23:32,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-09-16 00:23:32,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-09-16 00:23:32,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 176 transitions. [2020-09-16 00:23:32,102 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 176 transitions. Word has length 14 [2020-09-16 00:23:32,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:23:32,102 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 176 transitions. [2020-09-16 00:23:32,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-16 00:23:32,102 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 176 transitions. [2020-09-16 00:23:32,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-16 00:23:32,104 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:23:32,104 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:23:32,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-16 00:23:32,108 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:23:32,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:23:32,109 INFO L82 PathProgramCache]: Analyzing trace with hash -793372783, now seen corresponding path program 1 times [2020-09-16 00:23:32,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:23:32,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166008339] [2020-09-16 00:23:32,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:23:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:23:32,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:23:32,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166008339] [2020-09-16 00:23:32,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:23:32,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 00:23:32,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [296862898] [2020-09-16 00:23:32,173 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:23:32,175 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:23:32,180 INFO L274 McrAutomatonBuilder]: Finished intersection with 30 states and 41 transitions. [2020-09-16 00:23:32,180 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:23:32,222 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:23:32,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-16 00:23:32,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:23:32,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-16 00:23:32,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-16 00:23:32,223 INFO L87 Difference]: Start difference. First operand 84 states and 176 transitions. Second operand 4 states. [2020-09-16 00:23:32,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:23:32,239 INFO L93 Difference]: Finished difference Result 115 states and 234 transitions. [2020-09-16 00:23:32,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-16 00:23:32,240 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-09-16 00:23:32,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:23:32,241 INFO L225 Difference]: With dead ends: 115 [2020-09-16 00:23:32,241 INFO L226 Difference]: Without dead ends: 54 [2020-09-16 00:23:32,241 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-16 00:23:32,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-16 00:23:32,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-16 00:23:32,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-16 00:23:32,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-09-16 00:23:32,245 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-09-16 00:23:32,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:23:32,245 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-09-16 00:23:32,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-16 00:23:32,246 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-09-16 00:23:32,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-16 00:23:32,247 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:23:32,247 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:23:32,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-16 00:23:32,247 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:23:32,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:23:32,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1598285289, now seen corresponding path program 2 times [2020-09-16 00:23:32,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:23:32,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082591171] [2020-09-16 00:23:32,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:23:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:23:32,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:23:32,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082591171] [2020-09-16 00:23:32,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:23:32,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 00:23:32,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [560117255] [2020-09-16 00:23:32,318 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:23:32,321 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:23:32,328 INFO L274 McrAutomatonBuilder]: Finished intersection with 46 states and 77 transitions. [2020-09-16 00:23:32,329 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:23:32,459 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:23:32,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-16 00:23:32,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:23:32,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-16 00:23:32,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-16 00:23:32,461 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-09-16 00:23:32,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:23:32,474 INFO L93 Difference]: Finished difference Result 53 states and 97 transitions. [2020-09-16 00:23:32,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-16 00:23:32,474 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-09-16 00:23:32,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:23:32,475 INFO L225 Difference]: With dead ends: 53 [2020-09-16 00:23:32,475 INFO L226 Difference]: Without dead ends: 0 [2020-09-16 00:23:32,475 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-16 00:23:32,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-16 00:23:32,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-16 00:23:32,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-16 00:23:32,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-16 00:23:32,477 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-09-16 00:23:32,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:23:32,477 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-16 00:23:32,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-16 00:23:32,477 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-16 00:23:32,477 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-16 00:23:32,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-16 00:23:32,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 12:23:32 BasicIcfg [2020-09-16 00:23:32,483 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-16 00:23:32,487 INFO L168 Benchmark]: Toolchain (without parser) took 5136.18 ms. Allocated memory was 143.7 MB in the beginning and 246.9 MB in the end (delta: 103.3 MB). Free memory was 104.4 MB in the beginning and 109.4 MB in the end (delta: -5.0 MB). Peak memory consumption was 98.2 MB. Max. memory is 7.1 GB. [2020-09-16 00:23:32,488 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 143.7 MB. Free memory was 124.0 MB in the beginning and 123.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-16 00:23:32,489 INFO L168 Benchmark]: CACSL2BoogieTranslator took 841.36 ms. Allocated memory was 143.7 MB in the beginning and 206.0 MB in the end (delta: 62.4 MB). Free memory was 103.7 MB in the beginning and 162.8 MB in the end (delta: -59.1 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-09-16 00:23:32,490 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.14 ms. Allocated memory is still 206.0 MB. Free memory was 162.8 MB in the beginning and 160.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-09-16 00:23:32,491 INFO L168 Benchmark]: Boogie Preprocessor took 32.47 ms. Allocated memory is still 206.0 MB. Free memory was 160.4 MB in the beginning and 159.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. [2020-09-16 00:23:32,491 INFO L168 Benchmark]: RCFGBuilder took 536.12 ms. Allocated memory is still 206.0 MB. Free memory was 159.2 MB in the beginning and 136.5 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-09-16 00:23:32,492 INFO L168 Benchmark]: TraceAbstraction took 3652.87 ms. Allocated memory was 206.0 MB in the beginning and 246.9 MB in the end (delta: 40.9 MB). Free memory was 136.5 MB in the beginning and 109.4 MB in the end (delta: 27.0 MB). Peak memory consumption was 67.9 MB. Max. memory is 7.1 GB. [2020-09-16 00:23:32,497 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 143.7 MB. Free memory was 124.0 MB in the beginning and 123.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 841.36 ms. Allocated memory was 143.7 MB in the beginning and 206.0 MB in the end (delta: 62.4 MB). Free memory was 103.7 MB in the beginning and 162.8 MB in the end (delta: -59.1 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 64.14 ms. Allocated memory is still 206.0 MB. Free memory was 162.8 MB in the beginning and 160.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.47 ms. Allocated memory is still 206.0 MB. Free memory was 160.4 MB in the beginning and 159.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 536.12 ms. Allocated memory is still 206.0 MB. Free memory was 159.2 MB in the beginning and 136.5 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3652.87 ms. Allocated memory was 206.0 MB in the beginning and 246.9 MB in the end (delta: 40.9 MB). Free memory was 136.5 MB in the beginning and 109.4 MB in the end (delta: 27.0 MB). Peak memory consumption was 67.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 79 ProgramPointsBefore, 31 ProgramPointsAfterwards, 71 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 15 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 641 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2585 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: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 118 SDtfs, 116 SDslu, 163 SDs, 0 SdLazy, 80 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 54 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 2414 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...