/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 22:25:12,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 22:25:12,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 22:25:12,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 22:25:12,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 22:25:12,776 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 22:25:12,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 22:25:12,791 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 22:25:12,793 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 22:25:12,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 22:25:12,795 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 22:25:12,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 22:25:12,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 22:25:12,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 22:25:12,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 22:25:12,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 22:25:12,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 22:25:12,802 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 22:25:12,804 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 22:25:12,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 22:25:12,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 22:25:12,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 22:25:12,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 22:25:12,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 22:25:12,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 22:25:12,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 22:25:12,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 22:25:12,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 22:25:12,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 22:25:12,825 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 22:25:12,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 22:25:12,826 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 22:25:12,827 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 22:25:12,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 22:25:12,831 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 22:25:12,831 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 22:25:12,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 22:25:12,832 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 22:25:12,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 22:25:12,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 22:25:12,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 22:25:12,838 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-04-17 22:25:12,861 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 22:25:12,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 22:25:12,863 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 22:25:12,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 22:25:12,863 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 22:25:12,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 22:25:12,864 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 22:25:12,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 22:25:12,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 22:25:12,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 22:25:12,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 22:25:12,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 22:25:12,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 22:25:12,865 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 22:25:12,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 22:25:12,866 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 22:25:12,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 22:25:12,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 22:25:12,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 22:25:12,867 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 22:25:12,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 22:25:12,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 22:25:12,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 22:25:12,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 22:25:12,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 22:25:12,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 22:25:12,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 22:25:12,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 22:25:12,868 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 22:25:13,139 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 22:25:13,152 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 22:25:13,155 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 22:25:13,157 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 22:25:13,157 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 22:25:13,158 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2020-04-17 22:25:13,217 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa40e67ea/b2f314b52dc0405d89b5d5b367f75eb5/FLAG8fab96f95 [2020-04-17 22:25:13,791 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 22:25:13,791 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2020-04-17 22:25:13,805 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa40e67ea/b2f314b52dc0405d89b5d5b367f75eb5/FLAG8fab96f95 [2020-04-17 22:25:14,080 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa40e67ea/b2f314b52dc0405d89b5d5b367f75eb5 [2020-04-17 22:25:14,090 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 22:25:14,111 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 22:25:14,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 22:25:14,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 22:25:14,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 22:25:14,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:25:14" (1/1) ... [2020-04-17 22:25:14,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c57c664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:14, skipping insertion in model container [2020-04-17 22:25:14,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:25:14" (1/1) ... [2020-04-17 22:25:14,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 22:25:14,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 22:25:14,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 22:25:14,710 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 22:25:14,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 22:25:14,835 INFO L208 MainTranslator]: Completed translation [2020-04-17 22:25:14,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:14 WrapperNode [2020-04-17 22:25:14,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 22:25:14,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 22:25:14,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 22:25:14,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 22:25:14,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:14" (1/1) ... [2020-04-17 22:25:14,863 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:14" (1/1) ... [2020-04-17 22:25:14,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 22:25:14,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 22:25:14,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 22:25:14,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 22:25:14,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:14" (1/1) ... [2020-04-17 22:25:14,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:14" (1/1) ... [2020-04-17 22:25:14,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:14" (1/1) ... [2020-04-17 22:25:14,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:14" (1/1) ... [2020-04-17 22:25:14,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:14" (1/1) ... [2020-04-17 22:25:14,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:14" (1/1) ... [2020-04-17 22:25:14,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:14" (1/1) ... [2020-04-17 22:25:14,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 22:25:14,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 22:25:14,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 22:25:14,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 22:25:14,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 22:25:14,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 22:25:14,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-17 22:25:14,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 22:25:14,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 22:25:14,989 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-17 22:25:14,989 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-17 22:25:14,989 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-17 22:25:14,990 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-17 22:25:14,990 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-17 22:25:14,990 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-17 22:25:14,990 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-04-17 22:25:14,990 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-04-17 22:25:14,990 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-17 22:25:14,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 22:25:14,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 22:25:14,993 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 22:25:15,421 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 22:25:15,422 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-17 22:25:15,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:25:15 BoogieIcfgContainer [2020-04-17 22:25:15,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 22:25:15,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 22:25:15,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 22:25:15,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 22:25:15,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 10:25:14" (1/3) ... [2020-04-17 22:25:15,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d303235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:25:15, skipping insertion in model container [2020-04-17 22:25:15,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:14" (2/3) ... [2020-04-17 22:25:15,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d303235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:25:15, skipping insertion in model container [2020-04-17 22:25:15,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:25:15" (3/3) ... [2020-04-17 22:25:15,439 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_tso.opt.i [2020-04-17 22:25:15,450 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 22:25:15,450 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 22:25:15,460 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 22:25:15,461 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 22:25:15,494 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,495 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,495 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,497 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,498 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,498 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,498 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,498 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,499 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,499 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,499 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,499 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,500 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,500 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,500 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,501 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,501 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,501 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,502 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,502 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,503 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,503 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,503 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,504 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,510 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,510 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,511 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,511 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,520 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,521 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,521 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,521 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,524 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,524 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,525 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,525 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,529 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,530 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,530 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,530 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:15,547 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-17 22:25:15,569 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 22:25:15,570 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 22:25:15,570 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 22:25:15,570 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 22:25:15,570 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 22:25:15,570 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 22:25:15,570 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 22:25:15,571 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 22:25:15,588 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 184 flow [2020-04-17 22:25:15,590 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-04-17 22:25:15,668 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-04-17 22:25:15,668 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 22:25:15,673 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. [2020-04-17 22:25:15,677 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-04-17 22:25:15,700 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-04-17 22:25:15,700 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 22:25:15,701 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. [2020-04-17 22:25:15,704 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-04-17 22:25:15,706 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 22:25:17,454 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-04-17 22:25:17,525 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2807 [2020-04-17 22:25:17,525 INFO L214 etLargeBlockEncoding]: Total number of compositions: 63 [2020-04-17 22:25:17,529 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-04-17 22:25:17,599 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-04-17 22:25:17,601 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-04-17 22:25:17,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-17 22:25:17,616 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:17,617 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:17,617 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:17,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:17,626 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 1 times [2020-04-17 22:25:17,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:17,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851673408] [2020-04-17 22:25:17,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:17,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:17,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851673408] [2020-04-17 22:25:17,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:17,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:25:17,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399952810] [2020-04-17 22:25:17,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-17 22:25:17,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:17,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-17 22:25:17,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-17 22:25:17,845 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-04-17 22:25:17,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:17,909 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-04-17 22:25:17,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-17 22:25:17,911 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-04-17 22:25:17,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:17,941 INFO L225 Difference]: With dead ends: 850 [2020-04-17 22:25:17,941 INFO L226 Difference]: Without dead ends: 706 [2020-04-17 22:25:17,943 INFO L678 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 [2020-04-17 22:25:17,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-04-17 22:25:18,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-04-17 22:25:18,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-04-17 22:25:18,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-04-17 22:25:18,074 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-04-17 22:25:18,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:18,076 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-04-17 22:25:18,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-17 22:25:18,080 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-04-17 22:25:18,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-17 22:25:18,085 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:18,086 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:18,086 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:18,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:18,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 1 times [2020-04-17 22:25:18,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:18,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910006280] [2020-04-17 22:25:18,095 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:18,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:18,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910006280] [2020-04-17 22:25:18,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:18,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:25:18,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533755957] [2020-04-17 22:25:18,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:25:18,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:18,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:25:18,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:25:18,269 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-04-17 22:25:18,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:18,310 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions. [2020-04-17 22:25:18,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 22:25:18,311 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-04-17 22:25:18,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:18,317 INFO L225 Difference]: With dead ends: 778 [2020-04-17 22:25:18,318 INFO L226 Difference]: Without dead ends: 634 [2020-04-17 22:25:18,318 INFO L678 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 [2020-04-17 22:25:18,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-04-17 22:25:18,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-04-17 22:25:18,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-04-17 22:25:18,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions. [2020-04-17 22:25:18,350 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11 [2020-04-17 22:25:18,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:18,350 INFO L479 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions. [2020-04-17 22:25:18,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:25:18,350 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions. [2020-04-17 22:25:18,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 22:25:18,352 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:18,353 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:18,353 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:18,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:18,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1606888751, now seen corresponding path program 1 times [2020-04-17 22:25:18,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:18,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425071582] [2020-04-17 22:25:18,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:18,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:18,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:18,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425071582] [2020-04-17 22:25:18,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:18,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:25:18,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82455114] [2020-04-17 22:25:18,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:25:18,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:18,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:25:18,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:25:18,458 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 4 states. [2020-04-17 22:25:18,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:18,491 INFO L93 Difference]: Finished difference Result 688 states and 2256 transitions. [2020-04-17 22:25:18,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 22:25:18,491 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-17 22:25:18,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:18,497 INFO L225 Difference]: With dead ends: 688 [2020-04-17 22:25:18,497 INFO L226 Difference]: Without dead ends: 580 [2020-04-17 22:25:18,497 INFO L678 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 [2020-04-17 22:25:18,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-04-17 22:25:18,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-04-17 22:25:18,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-04-17 22:25:18,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 1932 transitions. [2020-04-17 22:25:18,521 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 1932 transitions. Word has length 12 [2020-04-17 22:25:18,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:18,522 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 1932 transitions. [2020-04-17 22:25:18,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:25:18,522 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 1932 transitions. [2020-04-17 22:25:18,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-17 22:25:18,524 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:18,524 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:18,524 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:18,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:18,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1718865431, now seen corresponding path program 1 times [2020-04-17 22:25:18,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:18,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886068757] [2020-04-17 22:25:18,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:18,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:18,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886068757] [2020-04-17 22:25:18,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:18,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:25:18,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392908249] [2020-04-17 22:25:18,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 22:25:18,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:18,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 22:25:18,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:25:18,595 INFO L87 Difference]: Start difference. First operand 580 states and 1932 transitions. Second operand 5 states. [2020-04-17 22:25:18,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:18,663 INFO L93 Difference]: Finished difference Result 751 states and 2457 transitions. [2020-04-17 22:25:18,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 22:25:18,664 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-04-17 22:25:18,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:18,667 INFO L225 Difference]: With dead ends: 751 [2020-04-17 22:25:18,667 INFO L226 Difference]: Without dead ends: 358 [2020-04-17 22:25:18,668 INFO L678 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 [2020-04-17 22:25:18,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-04-17 22:25:18,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-04-17 22:25:18,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-04-17 22:25:18,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 1128 transitions. [2020-04-17 22:25:18,681 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 1128 transitions. Word has length 13 [2020-04-17 22:25:18,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:18,682 INFO L479 AbstractCegarLoop]: Abstraction has 358 states and 1128 transitions. [2020-04-17 22:25:18,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 22:25:18,682 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 1128 transitions. [2020-04-17 22:25:18,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-17 22:25:18,683 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:18,683 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:18,683 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:18,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:18,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1081404616, now seen corresponding path program 1 times [2020-04-17 22:25:18,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:18,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267321399] [2020-04-17 22:25:18,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:18,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:18,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267321399] [2020-04-17 22:25:18,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:18,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:25:18,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775546205] [2020-04-17 22:25:18,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 22:25:18,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:18,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 22:25:18,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:25:18,762 INFO L87 Difference]: Start difference. First operand 358 states and 1128 transitions. Second operand 5 states. [2020-04-17 22:25:18,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:18,830 INFO L93 Difference]: Finished difference Result 496 states and 1517 transitions. [2020-04-17 22:25:18,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 22:25:18,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-04-17 22:25:18,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:18,833 INFO L225 Difference]: With dead ends: 496 [2020-04-17 22:25:18,833 INFO L226 Difference]: Without dead ends: 262 [2020-04-17 22:25:18,834 INFO L678 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 [2020-04-17 22:25:18,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-04-17 22:25:18,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-04-17 22:25:18,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-04-17 22:25:18,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 771 transitions. [2020-04-17 22:25:18,843 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 771 transitions. Word has length 14 [2020-04-17 22:25:18,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:18,844 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 771 transitions. [2020-04-17 22:25:18,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 22:25:18,844 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 771 transitions. [2020-04-17 22:25:18,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-17 22:25:18,845 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:18,845 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:18,845 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:18,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:18,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 1 times [2020-04-17 22:25:18,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:18,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059973076] [2020-04-17 22:25:18,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:18,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:18,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059973076] [2020-04-17 22:25:18,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:18,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:25:18,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635984070] [2020-04-17 22:25:18,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:25:18,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:18,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:25:18,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:25:18,954 INFO L87 Difference]: Start difference. First operand 262 states and 771 transitions. Second operand 4 states. [2020-04-17 22:25:19,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:19,016 INFO L93 Difference]: Finished difference Result 319 states and 873 transitions. [2020-04-17 22:25:19,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 22:25:19,017 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-04-17 22:25:19,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:19,019 INFO L225 Difference]: With dead ends: 319 [2020-04-17 22:25:19,019 INFO L226 Difference]: Without dead ends: 238 [2020-04-17 22:25:19,020 INFO L678 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 [2020-04-17 22:25:19,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-04-17 22:25:19,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-04-17 22:25:19,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-04-17 22:25:19,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 659 transitions. [2020-04-17 22:25:19,028 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 659 transitions. Word has length 15 [2020-04-17 22:25:19,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:19,029 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 659 transitions. [2020-04-17 22:25:19,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:25:19,029 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 659 transitions. [2020-04-17 22:25:19,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-17 22:25:19,030 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:19,030 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:19,031 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:19,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:19,031 INFO L82 PathProgramCache]: Analyzing trace with hash -857649028, now seen corresponding path program 1 times [2020-04-17 22:25:19,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:19,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924003137] [2020-04-17 22:25:19,033 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:19,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:19,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:19,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924003137] [2020-04-17 22:25:19,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:19,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 22:25:19,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610412120] [2020-04-17 22:25:19,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 22:25:19,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:19,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 22:25:19,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:25:19,135 INFO L87 Difference]: Start difference. First operand 238 states and 659 transitions. Second operand 5 states. [2020-04-17 22:25:19,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:19,194 INFO L93 Difference]: Finished difference Result 247 states and 617 transitions. [2020-04-17 22:25:19,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 22:25:19,195 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-04-17 22:25:19,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:19,197 INFO L225 Difference]: With dead ends: 247 [2020-04-17 22:25:19,197 INFO L226 Difference]: Without dead ends: 182 [2020-04-17 22:25:19,198 INFO L678 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 [2020-04-17 22:25:19,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-04-17 22:25:19,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-04-17 22:25:19,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-04-17 22:25:19,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 443 transitions. [2020-04-17 22:25:19,205 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 443 transitions. Word has length 16 [2020-04-17 22:25:19,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:19,205 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 443 transitions. [2020-04-17 22:25:19,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 22:25:19,205 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 443 transitions. [2020-04-17 22:25:19,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-17 22:25:19,206 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:19,207 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:19,207 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:19,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:19,207 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 1 times [2020-04-17 22:25:19,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:19,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458186965] [2020-04-17 22:25:19,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:19,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:19,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458186965] [2020-04-17 22:25:19,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:19,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-17 22:25:19,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118380018] [2020-04-17 22:25:19,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-17 22:25:19,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:19,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-17 22:25:19,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-17 22:25:19,299 INFO L87 Difference]: Start difference. First operand 182 states and 443 transitions. Second operand 6 states. [2020-04-17 22:25:19,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:19,365 INFO L93 Difference]: Finished difference Result 165 states and 373 transitions. [2020-04-17 22:25:19,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-17 22:25:19,366 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-04-17 22:25:19,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:19,367 INFO L225 Difference]: With dead ends: 165 [2020-04-17 22:25:19,367 INFO L226 Difference]: Without dead ends: 132 [2020-04-17 22:25:19,368 INFO L678 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 [2020-04-17 22:25:19,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-04-17 22:25:19,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-04-17 22:25:19,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-04-17 22:25:19,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 295 transitions. [2020-04-17 22:25:19,372 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 295 transitions. Word has length 17 [2020-04-17 22:25:19,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:19,373 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 295 transitions. [2020-04-17 22:25:19,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-17 22:25:19,373 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2020-04-17 22:25:19,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-17 22:25:19,374 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:19,374 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:19,374 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:19,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:19,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 1 times [2020-04-17 22:25:19,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:19,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671203773] [2020-04-17 22:25:19,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:19,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:19,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671203773] [2020-04-17 22:25:19,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:19,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-17 22:25:19,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198827859] [2020-04-17 22:25:19,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-17 22:25:19,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:19,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-17 22:25:19,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-17 22:25:19,468 INFO L87 Difference]: Start difference. First operand 132 states and 295 transitions. Second operand 7 states. [2020-04-17 22:25:19,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:19,535 INFO L93 Difference]: Finished difference Result 121 states and 271 transitions. [2020-04-17 22:25:19,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-17 22:25:19,536 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-04-17 22:25:19,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:19,537 INFO L225 Difference]: With dead ends: 121 [2020-04-17 22:25:19,537 INFO L226 Difference]: Without dead ends: 112 [2020-04-17 22:25:19,538 INFO L678 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 [2020-04-17 22:25:19,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-04-17 22:25:19,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-04-17 22:25:19,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-04-17 22:25:19,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-04-17 22:25:19,542 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 19 [2020-04-17 22:25:19,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:19,542 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-04-17 22:25:19,543 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-17 22:25:19,543 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-04-17 22:25:19,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-17 22:25:19,543 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:19,544 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:19,544 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:19,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:19,544 INFO L82 PathProgramCache]: Analyzing trace with hash 188961609, now seen corresponding path program 1 times [2020-04-17 22:25:19,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:19,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030168242] [2020-04-17 22:25:19,545 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:19,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:19,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030168242] [2020-04-17 22:25:19,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:19,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 22:25:19,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099724246] [2020-04-17 22:25:19,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 22:25:19,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:19,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 22:25:19,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:25:19,605 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 5 states. [2020-04-17 22:25:19,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:19,642 INFO L93 Difference]: Finished difference Result 146 states and 329 transitions. [2020-04-17 22:25:19,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 22:25:19,643 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-04-17 22:25:19,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:19,644 INFO L225 Difference]: With dead ends: 146 [2020-04-17 22:25:19,644 INFO L226 Difference]: Without dead ends: 52 [2020-04-17 22:25:19,646 INFO L678 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 [2020-04-17 22:25:19,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-04-17 22:25:19,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-04-17 22:25:19,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-04-17 22:25:19,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-04-17 22:25:19,648 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 21 [2020-04-17 22:25:19,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:19,649 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-04-17 22:25:19,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 22:25:19,649 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-04-17 22:25:19,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-17 22:25:19,649 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:19,649 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:19,650 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:19,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:19,650 INFO L82 PathProgramCache]: Analyzing trace with hash -62971415, now seen corresponding path program 2 times [2020-04-17 22:25:19,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:19,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35484422] [2020-04-17 22:25:19,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:19,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:19,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:19,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35484422] [2020-04-17 22:25:19,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:19,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 22:25:19,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415375808] [2020-04-17 22:25:19,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 22:25:19,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:19,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 22:25:19,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:25:19,717 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 5 states. [2020-04-17 22:25:19,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:19,748 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-04-17 22:25:19,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 22:25:19,748 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-04-17 22:25:19,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:19,748 INFO L225 Difference]: With dead ends: 51 [2020-04-17 22:25:19,748 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 22:25:19,749 INFO L678 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 [2020-04-17 22:25:19,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 22:25:19,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 22:25:19,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 22:25:19,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 22:25:19,750 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-04-17 22:25:19,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:19,750 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 22:25:19,750 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 22:25:19,750 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 22:25:19,750 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 22:25:19,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 10:25:19 BasicIcfg [2020-04-17 22:25:19,756 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 22:25:19,758 INFO L168 Benchmark]: Toolchain (without parser) took 5666.31 ms. Allocated memory was 138.4 MB in the beginning and 286.8 MB in the end (delta: 148.4 MB). Free memory was 100.6 MB in the beginning and 208.7 MB in the end (delta: -108.1 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2020-04-17 22:25:19,759 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-04-17 22:25:19,765 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.38 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 98.6 MB in the beginning and 159.2 MB in the end (delta: -60.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-04-17 22:25:19,766 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.03 ms. Allocated memory is still 202.9 MB. Free memory was 159.2 MB in the beginning and 157.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-17 22:25:19,767 INFO L168 Benchmark]: Boogie Preprocessor took 29.12 ms. Allocated memory is still 202.9 MB. Free memory was 157.2 MB in the beginning and 155.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-17 22:25:19,768 INFO L168 Benchmark]: RCFGBuilder took 510.46 ms. Allocated memory is still 202.9 MB. Free memory was 155.2 MB in the beginning and 131.5 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-04-17 22:25:19,773 INFO L168 Benchmark]: TraceAbstraction took 4327.55 ms. Allocated memory was 202.9 MB in the beginning and 286.8 MB in the end (delta: 83.9 MB). Free memory was 130.8 MB in the beginning and 208.7 MB in the end (delta: -77.9 MB). Peak memory consumption was 6.0 MB. Max. memory is 7.1 GB. [2020-04-17 22:25:19,781 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 723.38 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 98.6 MB in the beginning and 159.2 MB in the end (delta: -60.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.03 ms. Allocated memory is still 202.9 MB. Free memory was 159.2 MB in the beginning and 157.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.12 ms. Allocated memory is still 202.9 MB. Free memory was 157.2 MB in the beginning and 155.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 510.46 ms. Allocated memory is still 202.9 MB. Free memory was 155.2 MB in the beginning and 131.5 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4327.55 ms. Allocated memory was 202.9 MB in the beginning and 286.8 MB in the end (delta: 83.9 MB). Free memory was 130.8 MB in the beginning and 208.7 MB in the end (delta: -77.9 MB). Peak memory consumption was 6.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 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: 4.1s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 267 SDtfs, 328 SDslu, 473 SDs, 0 SdLazy, 205 SolverSat, 50 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, 0.6s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 7360 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...