/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 17:49:09,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 17:49:09,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 17:49:09,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 17:49:09,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 17:49:09,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 17:49:09,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 17:49:09,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 17:49:09,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 17:49:09,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 17:49:09,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 17:49:09,826 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 17:49:09,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 17:49:09,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 17:49:09,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 17:49:09,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 17:49:09,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 17:49:09,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 17:49:09,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 17:49:09,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 17:49:09,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 17:49:09,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 17:49:09,837 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 17:49:09,838 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 17:49:09,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 17:49:09,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 17:49:09,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 17:49:09,841 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 17:49:09,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 17:49:09,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 17:49:09,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 17:49:09,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 17:49:09,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 17:49:09,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 17:49:09,846 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 17:49:09,846 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 17:49:09,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 17:49:09,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 17:49:09,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 17:49:09,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 17:49:09,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 17:49:09,850 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-04-17 17:49:09,863 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 17:49:09,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 17:49:09,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 17:49:09,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 17:49:09,865 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 17:49:09,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 17:49:09,865 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 17:49:09,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 17:49:09,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 17:49:09,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 17:49:09,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 17:49:09,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 17:49:09,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 17:49:09,867 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 17:49:09,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 17:49:09,867 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 17:49:09,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 17:49:09,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 17:49:09,868 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 17:49:09,868 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 17:49:09,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 17:49:09,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 17:49:09,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 17:49:09,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 17:49:09,869 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 17:49:09,869 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 17:49:09,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 17:49:09,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 17:49:09,869 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-04-17 17:49:09,870 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 17:49:10,131 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 17:49:10,143 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 17:49:10,146 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 17:49:10,147 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 17:49:10,148 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 17:49:10,149 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2020-04-17 17:49:10,222 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec6547d3c/d57613c347aa47149266ee99747c64af/FLAG7bad2b5f4 [2020-04-17 17:49:10,755 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 17:49:10,756 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2020-04-17 17:49:10,776 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec6547d3c/d57613c347aa47149266ee99747c64af/FLAG7bad2b5f4 [2020-04-17 17:49:11,045 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec6547d3c/d57613c347aa47149266ee99747c64af [2020-04-17 17:49:11,054 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 17:49:11,077 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 17:49:11,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 17:49:11,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 17:49:11,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 17:49:11,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 05:49:11" (1/1) ... [2020-04-17 17:49:11,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2636c495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:49:11, skipping insertion in model container [2020-04-17 17:49:11,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 05:49:11" (1/1) ... [2020-04-17 17:49:11,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 17:49:11,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 17:49:11,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 17:49:11,688 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 17:49:11,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 17:49:11,837 INFO L208 MainTranslator]: Completed translation [2020-04-17 17:49:11,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:49:11 WrapperNode [2020-04-17 17:49:11,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 17:49:11,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 17:49:11,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 17:49:11,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 17:49:11,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:49:11" (1/1) ... [2020-04-17 17:49:11,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:49:11" (1/1) ... [2020-04-17 17:49:11,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 17:49:11,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 17:49:11,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 17:49:11,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 17:49:11,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:49:11" (1/1) ... [2020-04-17 17:49:11,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:49:11" (1/1) ... [2020-04-17 17:49:11,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:49:11" (1/1) ... [2020-04-17 17:49:11,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:49:11" (1/1) ... [2020-04-17 17:49:11,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:49:11" (1/1) ... [2020-04-17 17:49:11,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:49:11" (1/1) ... [2020-04-17 17:49:11,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:49:11" (1/1) ... [2020-04-17 17:49:11,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 17:49:11,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 17:49:11,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 17:49:11,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 17:49:11,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:49:11" (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 17:49:11,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 17:49:11,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-17 17:49:11,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 17:49:11,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 17:49:11,980 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-17 17:49:11,980 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-17 17:49:11,980 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-17 17:49:11,981 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-17 17:49:11,981 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-17 17:49:11,982 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-17 17:49:11,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-17 17:49:11,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 17:49:11,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 17:49:11,983 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 17:49:12,378 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 17:49:12,379 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-17 17:49:12,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 05:49:12 BoogieIcfgContainer [2020-04-17 17:49:12,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 17:49:12,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 17:49:12,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 17:49:12,389 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 17:49:12,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 05:49:11" (1/3) ... [2020-04-17 17:49:12,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dff187d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 05:49:12, skipping insertion in model container [2020-04-17 17:49:12,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:49:11" (2/3) ... [2020-04-17 17:49:12,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dff187d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 05:49:12, skipping insertion in model container [2020-04-17 17:49:12,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 05:49:12" (3/3) ... [2020-04-17 17:49:12,395 INFO L109 eAbstractionObserver]: Analyzing ICFG safe013_tso.oepc.i [2020-04-17 17:49:12,410 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 17:49:12,410 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 17:49:12,417 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 17:49:12,418 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 17:49:12,442 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,443 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,443 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,443 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,444 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,444 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,445 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,445 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,445 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,445 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,446 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,446 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,446 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,447 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,447 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,447 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,448 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,448 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,452 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,453 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,453 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,454 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,464 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,465 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,465 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,465 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,468 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,468 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,468 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,469 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:49:12,490 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-17 17:49:12,513 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 17:49:12,513 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 17:49:12,514 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 17:49:12,514 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 17:49:12,514 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 17:49:12,514 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 17:49:12,514 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 17:49:12,514 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 17:49:12,530 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-04-17 17:49:12,532 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-04-17 17:49:12,573 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-04-17 17:49:12,573 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 17:49:12,578 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 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. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-17 17:49:12,581 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-04-17 17:49:12,604 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-04-17 17:49:12,604 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 17:49:12,605 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 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. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-17 17:49:12,608 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-17 17:49:12,609 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 17:49:14,493 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2190 [2020-04-17 17:49:14,493 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-04-17 17:49:14,498 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-04-17 17:49:14,526 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-04-17 17:49:14,530 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-04-17 17:49:14,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-17 17:49:14,540 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:49:14,541 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:49:14,542 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:49:14,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:49:14,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1620259193, now seen corresponding path program 1 times [2020-04-17 17:49:14,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:49:14,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723795693] [2020-04-17 17:49:14,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:49:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:49:14,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 17:49:14,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723795693] [2020-04-17 17:49:14,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:49:14,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 17:49:14,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517011920] [2020-04-17 17:49:14,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 17:49:14,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:49:14,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 17:49:14,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 17:49:14,905 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-04-17 17:49:14,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:49:14,950 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-04-17 17:49:14,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 17:49:14,953 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-04-17 17:49:14,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:49:14,970 INFO L225 Difference]: With dead ends: 282 [2020-04-17 17:49:14,970 INFO L226 Difference]: Without dead ends: 218 [2020-04-17 17:49:14,972 INFO L678 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 [2020-04-17 17:49:14,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-04-17 17:49:15,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-04-17 17:49:15,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-04-17 17:49:15,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-04-17 17:49:15,070 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-04-17 17:49:15,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:49:15,071 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-04-17 17:49:15,071 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 17:49:15,071 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-04-17 17:49:15,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-17 17:49:15,074 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:49:15,074 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:49:15,075 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:49:15,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:49:15,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1311571333, now seen corresponding path program 1 times [2020-04-17 17:49:15,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:49:15,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943224871] [2020-04-17 17:49:15,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:49:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:49:15,155 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 17:49:15,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943224871] [2020-04-17 17:49:15,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:49:15,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 17:49:15,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641706287] [2020-04-17 17:49:15,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 17:49:15,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:49:15,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 17:49:15,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 17:49:15,159 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-04-17 17:49:15,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:49:15,187 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-04-17 17:49:15,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 17:49:15,188 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-04-17 17:49:15,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:49:15,190 INFO L225 Difference]: With dead ends: 242 [2020-04-17 17:49:15,190 INFO L226 Difference]: Without dead ends: 146 [2020-04-17 17:49:15,191 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 17:49:15,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-04-17 17:49:15,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-04-17 17:49:15,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-04-17 17:49:15,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-04-17 17:49:15,203 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-04-17 17:49:15,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:49:15,203 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-04-17 17:49:15,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 17:49:15,203 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-04-17 17:49:15,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-17 17:49:15,205 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:49:15,205 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:49:15,205 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:49:15,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:49:15,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1994932005, now seen corresponding path program 1 times [2020-04-17 17:49:15,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:49:15,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126820909] [2020-04-17 17:49:15,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:49:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:49:15,256 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 17:49:15,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126820909] [2020-04-17 17:49:15,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:49:15,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 17:49:15,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542630048] [2020-04-17 17:49:15,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 17:49:15,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:49:15,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 17:49:15,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 17:49:15,259 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states. [2020-04-17 17:49:15,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:49:15,268 INFO L93 Difference]: Finished difference Result 144 states and 355 transitions. [2020-04-17 17:49:15,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 17:49:15,268 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-04-17 17:49:15,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:49:15,270 INFO L225 Difference]: With dead ends: 144 [2020-04-17 17:49:15,270 INFO L226 Difference]: Without dead ends: 144 [2020-04-17 17:49:15,271 INFO L678 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 [2020-04-17 17:49:15,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-04-17 17:49:15,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-04-17 17:49:15,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-04-17 17:49:15,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 355 transitions. [2020-04-17 17:49:15,285 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 355 transitions. Word has length 11 [2020-04-17 17:49:15,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:49:15,286 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 355 transitions. [2020-04-17 17:49:15,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 17:49:15,286 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 355 transitions. [2020-04-17 17:49:15,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 17:49:15,287 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:49:15,287 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:49:15,288 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:49:15,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:49:15,288 INFO L82 PathProgramCache]: Analyzing trace with hash 315672505, now seen corresponding path program 1 times [2020-04-17 17:49:15,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:49:15,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252111195] [2020-04-17 17:49:15,289 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:49:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:49:15,443 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 17:49:15,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252111195] [2020-04-17 17:49:15,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:49:15,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 17:49:15,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165885664] [2020-04-17 17:49:15,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 17:49:15,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:49:15,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 17:49:15,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 17:49:15,446 INFO L87 Difference]: Start difference. First operand 144 states and 355 transitions. Second operand 4 states. [2020-04-17 17:49:15,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:49:15,505 INFO L93 Difference]: Finished difference Result 164 states and 374 transitions. [2020-04-17 17:49:15,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 17:49:15,507 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-17 17:49:15,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:49:15,508 INFO L225 Difference]: With dead ends: 164 [2020-04-17 17:49:15,508 INFO L226 Difference]: Without dead ends: 124 [2020-04-17 17:49:15,509 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 17:49:15,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-04-17 17:49:15,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-04-17 17:49:15,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-04-17 17:49:15,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 281 transitions. [2020-04-17 17:49:15,529 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 281 transitions. Word has length 12 [2020-04-17 17:49:15,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:49:15,530 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 281 transitions. [2020-04-17 17:49:15,530 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 17:49:15,530 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 281 transitions. [2020-04-17 17:49:15,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-17 17:49:15,532 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:49:15,532 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:49:15,536 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:49:15,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:49:15,536 INFO L82 PathProgramCache]: Analyzing trace with hash 852950147, now seen corresponding path program 1 times [2020-04-17 17:49:15,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:49:15,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734361020] [2020-04-17 17:49:15,537 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:49:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:49:15,645 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 17:49:15,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734361020] [2020-04-17 17:49:15,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:49:15,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 17:49:15,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917676863] [2020-04-17 17:49:15,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 17:49:15,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:49:15,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 17:49:15,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-17 17:49:15,650 INFO L87 Difference]: Start difference. First operand 124 states and 281 transitions. Second operand 5 states. [2020-04-17 17:49:15,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:49:15,695 INFO L93 Difference]: Finished difference Result 122 states and 258 transitions. [2020-04-17 17:49:15,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 17:49:15,699 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-04-17 17:49:15,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:49:15,700 INFO L225 Difference]: With dead ends: 122 [2020-04-17 17:49:15,700 INFO L226 Difference]: Without dead ends: 97 [2020-04-17 17:49:15,700 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 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 17:49:15,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-04-17 17:49:15,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-04-17 17:49:15,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-04-17 17:49:15,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-04-17 17:49:15,716 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 13 [2020-04-17 17:49:15,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:49:15,716 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-04-17 17:49:15,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 17:49:15,717 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-04-17 17:49:15,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-17 17:49:15,718 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:49:15,718 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:49:15,718 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:49:15,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:49:15,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1634628682, now seen corresponding path program 1 times [2020-04-17 17:49:15,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:49:15,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68086436] [2020-04-17 17:49:15,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:49:15,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:49:15,762 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 17:49:15,762 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68086436] [2020-04-17 17:49:15,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:49:15,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 17:49:15,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088601879] [2020-04-17 17:49:15,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 17:49:15,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:49:15,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 17:49:15,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 17:49:15,765 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 3 states. [2020-04-17 17:49:15,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:49:15,775 INFO L93 Difference]: Finished difference Result 115 states and 230 transitions. [2020-04-17 17:49:15,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 17:49:15,775 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-04-17 17:49:15,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:49:15,777 INFO L225 Difference]: With dead ends: 115 [2020-04-17 17:49:15,777 INFO L226 Difference]: Without dead ends: 98 [2020-04-17 17:49:15,777 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 17:49:15,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-04-17 17:49:15,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2020-04-17 17:49:15,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-04-17 17:49:15,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 193 transitions. [2020-04-17 17:49:15,782 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 193 transitions. Word has length 14 [2020-04-17 17:49:15,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:49:15,783 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 193 transitions. [2020-04-17 17:49:15,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 17:49:15,783 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 193 transitions. [2020-04-17 17:49:15,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-17 17:49:15,784 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:49:15,784 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:49:15,784 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:49:15,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:49:15,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1887879687, now seen corresponding path program 1 times [2020-04-17 17:49:15,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:49:15,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396307904] [2020-04-17 17:49:15,786 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:49:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:49:15,912 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 17:49:15,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396307904] [2020-04-17 17:49:15,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:49:15,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 17:49:15,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920826403] [2020-04-17 17:49:15,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-17 17:49:15,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:49:15,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-17 17:49:15,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-17 17:49:15,916 INFO L87 Difference]: Start difference. First operand 96 states and 193 transitions. Second operand 6 states. [2020-04-17 17:49:15,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:49:15,975 INFO L93 Difference]: Finished difference Result 92 states and 183 transitions. [2020-04-17 17:49:15,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-17 17:49:15,976 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-04-17 17:49:15,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:49:15,976 INFO L225 Difference]: With dead ends: 92 [2020-04-17 17:49:15,977 INFO L226 Difference]: Without dead ends: 36 [2020-04-17 17:49:15,977 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 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 17:49:15,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-04-17 17:49:15,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-04-17 17:49:15,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-04-17 17:49:15,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-04-17 17:49:15,979 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 15 [2020-04-17 17:49:15,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:49:15,979 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-04-17 17:49:15,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-17 17:49:15,980 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-04-17 17:49:15,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-17 17:49:15,980 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:49:15,980 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 17:49:15,981 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:49:15,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:49:15,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1759545272, now seen corresponding path program 1 times [2020-04-17 17:49:15,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:49:15,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984610677] [2020-04-17 17:49:15,982 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:49:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:49:16,012 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 17:49:16,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984610677] [2020-04-17 17:49:16,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:49:16,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 17:49:16,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894862721] [2020-04-17 17:49:16,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 17:49:16,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:49:16,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 17:49:16,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 17:49:16,014 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 4 states. [2020-04-17 17:49:16,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:49:16,025 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-04-17 17:49:16,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 17:49:16,025 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-04-17 17:49:16,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:49:16,026 INFO L225 Difference]: With dead ends: 35 [2020-04-17 17:49:16,026 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 17:49:16,026 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 17:49:16,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 17:49:16,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 17:49:16,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 17:49:16,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 17:49:16,027 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-04-17 17:49:16,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:49:16,027 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 17:49:16,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 17:49:16,028 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 17:49:16,028 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 17:49:16,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 05:49:16 BasicIcfg [2020-04-17 17:49:16,032 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 17:49:16,034 INFO L168 Benchmark]: Toolchain (without parser) took 4978.27 ms. Allocated memory was 141.6 MB in the beginning and 259.0 MB in the end (delta: 117.4 MB). Free memory was 98.4 MB in the beginning and 201.8 MB in the end (delta: -103.4 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-04-17 17:49:16,035 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 141.6 MB. Free memory was 117.8 MB in the beginning and 117.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-17 17:49:16,036 INFO L168 Benchmark]: CACSL2BoogieTranslator took 760.43 ms. Allocated memory was 141.6 MB in the beginning and 199.2 MB in the end (delta: 57.7 MB). Free memory was 96.6 MB in the beginning and 153.8 MB in the end (delta: -57.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2020-04-17 17:49:16,037 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.19 ms. Allocated memory is still 199.2 MB. Free memory was 153.8 MB in the beginning and 151.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-04-17 17:49:16,038 INFO L168 Benchmark]: Boogie Preprocessor took 25.19 ms. Allocated memory is still 199.2 MB. Free memory was 151.5 MB in the beginning and 150.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2020-04-17 17:49:16,038 INFO L168 Benchmark]: RCFGBuilder took 465.00 ms. Allocated memory is still 199.2 MB. Free memory was 150.0 MB in the beginning and 128.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-04-17 17:49:16,039 INFO L168 Benchmark]: TraceAbstraction took 3646.95 ms. Allocated memory was 199.2 MB in the beginning and 259.0 MB in the end (delta: 59.8 MB). Free memory was 127.3 MB in the beginning and 201.8 MB in the end (delta: -74.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-17 17:49:16,044 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 141.6 MB. Free memory was 117.8 MB in the beginning and 117.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 760.43 ms. Allocated memory was 141.6 MB in the beginning and 199.2 MB in the end (delta: 57.7 MB). Free memory was 96.6 MB in the beginning and 153.8 MB in the end (delta: -57.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.19 ms. Allocated memory is still 199.2 MB. Free memory was 153.8 MB in the beginning and 151.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.19 ms. Allocated memory is still 199.2 MB. Free memory was 151.5 MB in the beginning and 150.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 465.00 ms. Allocated memory is still 199.2 MB. Free memory was 150.0 MB in the beginning and 128.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3646.95 ms. Allocated memory was 199.2 MB in the beginning and 259.0 MB in the end (delta: 59.8 MB). Free memory was 127.3 MB in the beginning and 201.8 MB in the end (delta: -74.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 673 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 2190 CheckedPairsTotal, 58 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.5s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 145 SDtfs, 123 SDslu, 177 SDs, 0 SdLazy, 97 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 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: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 3229 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...