/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 15:41:18,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 15:41:18,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 15:41:18,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 15:41:18,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 15:41:18,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 15:41:18,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 15:41:18,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 15:41:18,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 15:41:18,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 15:41:18,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 15:41:18,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 15:41:18,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 15:41:18,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 15:41:18,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 15:41:18,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 15:41:18,880 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 15:41:18,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 15:41:18,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 15:41:18,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 15:41:18,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 15:41:18,895 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 15:41:18,896 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 15:41:18,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 15:41:18,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-11 15:41:18,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-11 15:41:18,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-11 15:41:18,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-11 15:41:18,906 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-11 15:41:18,908 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-11 15:41:18,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 15:41:18,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 15:41:18,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 15:41:18,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 15:41:18,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 15:41:18,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 15:41:18,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 15:41:18,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 15:41:18,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 15:41:18,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 15:41:18,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 15:41:18,917 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-11 15:41:18,957 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 15:41:18,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 15:41:18,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 15:41:18,959 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 15:41:18,960 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 15:41:18,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 15:41:18,960 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 15:41:18,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 15:41:18,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 15:41:18,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 15:41:18,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 15:41:18,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 15:41:18,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 15:41:18,961 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 15:41:18,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 15:41:18,962 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 15:41:18,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 15:41:18,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 15:41:18,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 15:41:18,963 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 15:41:18,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 15:41:18,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 15:41:18,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 15:41:18,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-11 15:41:18,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 15:41:18,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 15:41:18,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 15:41:18,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 15:41:18,965 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-11 15:41:18,965 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-11 15:41:19,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 15:41:19,419 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 15:41:19,423 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 15:41:19,425 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 15:41:19,425 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 15:41:19,426 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2020-09-11 15:41:19,518 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/66c8e4694/aa80ba1e3cfc47b4bfc5d1abbef9af4a/FLAG6b29307b5 [2020-09-11 15:41:20,129 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 15:41:20,130 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2020-09-11 15:41:20,149 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/66c8e4694/aa80ba1e3cfc47b4bfc5d1abbef9af4a/FLAG6b29307b5 [2020-09-11 15:41:20,398 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/66c8e4694/aa80ba1e3cfc47b4bfc5d1abbef9af4a [2020-09-11 15:41:20,411 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 15:41:20,417 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 15:41:20,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 15:41:20,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 15:41:20,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 15:41:20,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:41:20" (1/1) ... [2020-09-11 15:41:20,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52697317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:20, skipping insertion in model container [2020-09-11 15:41:20,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:41:20" (1/1) ... [2020-09-11 15:41:20,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 15:41:20,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 15:41:21,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:41:21,055 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 15:41:21,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:41:21,192 INFO L208 MainTranslator]: Completed translation [2020-09-11 15:41:21,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:21 WrapperNode [2020-09-11 15:41:21,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 15:41:21,195 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 15:41:21,195 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 15:41:21,195 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 15:41:21,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:21" (1/1) ... [2020-09-11 15:41:21,230 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:21" (1/1) ... [2020-09-11 15:41:21,257 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 15:41:21,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 15:41:21,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 15:41:21,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 15:41:21,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:21" (1/1) ... [2020-09-11 15:41:21,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:21" (1/1) ... [2020-09-11 15:41:21,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:21" (1/1) ... [2020-09-11 15:41:21,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:21" (1/1) ... [2020-09-11 15:41:21,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:21" (1/1) ... [2020-09-11 15:41:21,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:21" (1/1) ... [2020-09-11 15:41:21,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:21" (1/1) ... [2020-09-11 15:41:21,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 15:41:21,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 15:41:21,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 15:41:21,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 15:41:21,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:21" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 15:41:21,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 15:41:21,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-11 15:41:21,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 15:41:21,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 15:41:21,385 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-11 15:41:21,385 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-11 15:41:21,386 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-11 15:41:21,386 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-11 15:41:21,386 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-11 15:41:21,386 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-11 15:41:21,386 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-09-11 15:41:21,387 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-09-11 15:41:21,387 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-11 15:41:21,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 15:41:21,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 15:41:21,390 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-11 15:41:21,801 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 15:41:21,801 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-11 15:41:21,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:41:21 BoogieIcfgContainer [2020-09-11 15:41:21,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 15:41:21,809 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 15:41:21,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 15:41:21,813 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 15:41:21,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 03:41:20" (1/3) ... [2020-09-11 15:41:21,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c88f57d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:41:21, skipping insertion in model container [2020-09-11 15:41:21,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:21" (2/3) ... [2020-09-11 15:41:21,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c88f57d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:41:21, skipping insertion in model container [2020-09-11 15:41:21,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:41:21" (3/3) ... [2020-09-11 15:41:21,817 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc.i [2020-09-11 15:41:21,828 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 15:41:21,829 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-11 15:41:21,838 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-11 15:41:21,839 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 15:41:21,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,874 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,874 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,874 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,875 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,875 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,876 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,876 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,876 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,876 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,877 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,877 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,878 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,878 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,878 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,878 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,879 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,879 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,879 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,880 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,880 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,880 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,881 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,881 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,886 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,886 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,886 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,887 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,899 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,900 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,900 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,900 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,905 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,905 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,905 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,906 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,908 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,909 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,909 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,909 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:21,938 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-11 15:41:21,975 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 15:41:21,975 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 15:41:21,975 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-11 15:41:21,976 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-11 15:41:21,976 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 15:41:21,976 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 15:41:21,976 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 15:41:21,976 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 15:41:22,006 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 184 flow [2020-09-11 15:41:22,009 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-09-11 15:41:22,100 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-09-11 15:41:22,101 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:41:22,108 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-11 15:41:22,113 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-09-11 15:41:22,141 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-09-11 15:41:22,141 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:41:22,142 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-11 15:41:22,145 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-09-11 15:41:22,147 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-11 15:41:23,992 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-09-11 15:41:24,061 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2807 [2020-09-11 15:41:24,061 INFO L214 etLargeBlockEncoding]: Total number of compositions: 63 [2020-09-11 15:41:24,066 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-09-11 15:41:24,127 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-09-11 15:41:24,130 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-09-11 15:41:24,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-11 15:41:24,143 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:24,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:24,145 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:24,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:24,154 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 1 times [2020-09-11 15:41:24,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:24,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781628053] [2020-09-11 15:41:24,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:24,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:24,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781628053] [2020-09-11 15:41:24,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:24,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:41:24,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145374719] [2020-09-11 15:41:24,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-11 15:41:24,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:24,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-11 15:41:24,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-11 15:41:24,421 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-09-11 15:41:24,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:24,474 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-09-11 15:41:24,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-11 15:41:24,476 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-09-11 15:41:24,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:24,507 INFO L225 Difference]: With dead ends: 850 [2020-09-11 15:41:24,507 INFO L226 Difference]: Without dead ends: 706 [2020-09-11 15:41:24,509 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-11 15:41:24,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-09-11 15:41:24,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-09-11 15:41:24,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-09-11 15:41:24,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-09-11 15:41:24,631 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-09-11 15:41:24,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:24,632 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-09-11 15:41:24,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-11 15:41:24,633 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-09-11 15:41:24,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-11 15:41:24,635 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:24,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:24,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 15:41:24,636 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:24,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:24,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 1 times [2020-09-11 15:41:24,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:24,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418042329] [2020-09-11 15:41:24,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:24,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:24,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:24,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418042329] [2020-09-11 15:41:24,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:24,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:41:24,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979035835] [2020-09-11 15:41:24,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:41:24,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:24,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:41:24,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:41:24,810 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-09-11 15:41:24,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:24,853 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions. [2020-09-11 15:41:24,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 15:41:24,854 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-11 15:41:24,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:24,860 INFO L225 Difference]: With dead ends: 778 [2020-09-11 15:41:24,861 INFO L226 Difference]: Without dead ends: 634 [2020-09-11 15:41:24,862 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:41:24,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-09-11 15:41:24,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-09-11 15:41:24,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-09-11 15:41:24,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions. [2020-09-11 15:41:24,914 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11 [2020-09-11 15:41:24,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:24,915 INFO L479 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions. [2020-09-11 15:41:24,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:41:24,915 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions. [2020-09-11 15:41:24,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-11 15:41:24,918 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:24,918 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:24,918 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 15:41:24,918 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:24,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:24,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1607812272, now seen corresponding path program 1 times [2020-09-11 15:41:24,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:24,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058718385] [2020-09-11 15:41:24,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:25,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:25,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058718385] [2020-09-11 15:41:25,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:25,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:41:25,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960721493] [2020-09-11 15:41:25,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:41:25,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:25,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:41:25,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:41:25,086 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 5 states. [2020-09-11 15:41:25,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:25,178 INFO L93 Difference]: Finished difference Result 862 states and 2843 transitions. [2020-09-11 15:41:25,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 15:41:25,179 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-11 15:41:25,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:25,183 INFO L225 Difference]: With dead ends: 862 [2020-09-11 15:41:25,183 INFO L226 Difference]: Without dead ends: 466 [2020-09-11 15:41:25,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-11 15:41:25,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-09-11 15:41:25,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2020-09-11 15:41:25,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2020-09-11 15:41:25,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 1482 transitions. [2020-09-11 15:41:25,205 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 1482 transitions. Word has length 12 [2020-09-11 15:41:25,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:25,205 INFO L479 AbstractCegarLoop]: Abstraction has 466 states and 1482 transitions. [2020-09-11 15:41:25,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:41:25,206 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 1482 transitions. [2020-09-11 15:41:25,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-11 15:41:25,207 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:25,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:25,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 15:41:25,208 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:25,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:25,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1203540713, now seen corresponding path program 1 times [2020-09-11 15:41:25,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:25,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565211696] [2020-09-11 15:41:25,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:25,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:25,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565211696] [2020-09-11 15:41:25,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:25,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:41:25,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269525147] [2020-09-11 15:41:25,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:41:25,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:25,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:41:25,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:41:25,291 INFO L87 Difference]: Start difference. First operand 466 states and 1482 transitions. Second operand 4 states. [2020-09-11 15:41:25,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:25,313 INFO L93 Difference]: Finished difference Result 502 states and 1548 transitions. [2020-09-11 15:41:25,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 15:41:25,314 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-11 15:41:25,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:25,317 INFO L225 Difference]: With dead ends: 502 [2020-09-11 15:41:25,318 INFO L226 Difference]: Without dead ends: 430 [2020-09-11 15:41:25,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:41:25,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-09-11 15:41:25,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2020-09-11 15:41:25,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-09-11 15:41:25,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 1344 transitions. [2020-09-11 15:41:25,335 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 1344 transitions. Word has length 13 [2020-09-11 15:41:25,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:25,335 INFO L479 AbstractCegarLoop]: Abstraction has 430 states and 1344 transitions. [2020-09-11 15:41:25,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:41:25,336 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 1344 transitions. [2020-09-11 15:41:25,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-11 15:41:25,337 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:25,337 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:25,337 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-11 15:41:25,338 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:25,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:25,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1251334402, now seen corresponding path program 1 times [2020-09-11 15:41:25,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:25,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472470726] [2020-09-11 15:41:25,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:25,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:25,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472470726] [2020-09-11 15:41:25,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:25,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:41:25,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699057496] [2020-09-11 15:41:25,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:41:25,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:25,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:41:25,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:41:25,412 INFO L87 Difference]: Start difference. First operand 430 states and 1344 transitions. Second operand 5 states. [2020-09-11 15:41:25,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:25,492 INFO L93 Difference]: Finished difference Result 556 states and 1707 transitions. [2020-09-11 15:41:25,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 15:41:25,493 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-11 15:41:25,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:25,495 INFO L225 Difference]: With dead ends: 556 [2020-09-11 15:41:25,495 INFO L226 Difference]: Without dead ends: 262 [2020-09-11 15:41:25,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-11 15:41:25,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-09-11 15:41:25,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-09-11 15:41:25,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-11 15:41:25,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 771 transitions. [2020-09-11 15:41:25,506 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 771 transitions. Word has length 14 [2020-09-11 15:41:25,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:25,507 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 771 transitions. [2020-09-11 15:41:25,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:41:25,507 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 771 transitions. [2020-09-11 15:41:25,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-11 15:41:25,508 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:25,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:25,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-11 15:41:25,508 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:25,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:25,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 1 times [2020-09-11 15:41:25,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:25,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840303172] [2020-09-11 15:41:25,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:25,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:25,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840303172] [2020-09-11 15:41:25,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:25,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:41:25,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793885319] [2020-09-11 15:41:25,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:41:25,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:25,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:41:25,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:41:25,627 INFO L87 Difference]: Start difference. First operand 262 states and 771 transitions. Second operand 4 states. [2020-09-11 15:41:25,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:25,686 INFO L93 Difference]: Finished difference Result 319 states and 873 transitions. [2020-09-11 15:41:25,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 15:41:25,689 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-09-11 15:41:25,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:25,692 INFO L225 Difference]: With dead ends: 319 [2020-09-11 15:41:25,692 INFO L226 Difference]: Without dead ends: 238 [2020-09-11 15:41:25,693 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:41:25,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-09-11 15:41:25,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-09-11 15:41:25,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-09-11 15:41:25,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 659 transitions. [2020-09-11 15:41:25,702 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 659 transitions. Word has length 15 [2020-09-11 15:41:25,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:25,702 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 659 transitions. [2020-09-11 15:41:25,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:41:25,703 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 659 transitions. [2020-09-11 15:41:25,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-11 15:41:25,705 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:25,705 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:25,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-11 15:41:25,707 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:25,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:25,707 INFO L82 PathProgramCache]: Analyzing trace with hash -857649028, now seen corresponding path program 1 times [2020-09-11 15:41:25,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:25,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849571324] [2020-09-11 15:41:25,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:25,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:25,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849571324] [2020-09-11 15:41:25,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:25,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-11 15:41:25,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660229703] [2020-09-11 15:41:25,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:41:25,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:25,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:41:25,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:41:25,845 INFO L87 Difference]: Start difference. First operand 238 states and 659 transitions. Second operand 5 states. [2020-09-11 15:41:25,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:25,928 INFO L93 Difference]: Finished difference Result 247 states and 617 transitions. [2020-09-11 15:41:25,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 15:41:25,929 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-11 15:41:25,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:25,931 INFO L225 Difference]: With dead ends: 247 [2020-09-11 15:41:25,931 INFO L226 Difference]: Without dead ends: 182 [2020-09-11 15:41:25,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-11 15:41:25,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-09-11 15:41:25,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-09-11 15:41:25,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-11 15:41:25,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 443 transitions. [2020-09-11 15:41:25,942 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 443 transitions. Word has length 16 [2020-09-11 15:41:25,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:25,942 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 443 transitions. [2020-09-11 15:41:25,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:41:25,942 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 443 transitions. [2020-09-11 15:41:25,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-11 15:41:25,943 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:25,943 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:25,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-11 15:41:25,944 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:25,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:25,944 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 1 times [2020-09-11 15:41:25,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:25,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938916314] [2020-09-11 15:41:25,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:26,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:26,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938916314] [2020-09-11 15:41:26,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:26,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-11 15:41:26,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595147060] [2020-09-11 15:41:26,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-11 15:41:26,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:26,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-11 15:41:26,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-11 15:41:26,134 INFO L87 Difference]: Start difference. First operand 182 states and 443 transitions. Second operand 6 states. [2020-09-11 15:41:26,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:26,204 INFO L93 Difference]: Finished difference Result 165 states and 373 transitions. [2020-09-11 15:41:26,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-11 15:41:26,205 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-09-11 15:41:26,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:26,207 INFO L225 Difference]: With dead ends: 165 [2020-09-11 15:41:26,207 INFO L226 Difference]: Without dead ends: 132 [2020-09-11 15:41:26,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-11 15:41:26,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-09-11 15:41:26,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-09-11 15:41:26,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-09-11 15:41:26,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 295 transitions. [2020-09-11 15:41:26,221 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 295 transitions. Word has length 17 [2020-09-11 15:41:26,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:26,222 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 295 transitions. [2020-09-11 15:41:26,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-11 15:41:26,222 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2020-09-11 15:41:26,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-11 15:41:26,223 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:26,223 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:26,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-11 15:41:26,223 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:26,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:26,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 1 times [2020-09-11 15:41:26,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:26,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543939834] [2020-09-11 15:41:26,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:26,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:26,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543939834] [2020-09-11 15:41:26,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:26,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-11 15:41:26,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734705638] [2020-09-11 15:41:26,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-11 15:41:26,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:26,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-11 15:41:26,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-11 15:41:26,368 INFO L87 Difference]: Start difference. First operand 132 states and 295 transitions. Second operand 7 states. [2020-09-11 15:41:26,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:26,457 INFO L93 Difference]: Finished difference Result 121 states and 271 transitions. [2020-09-11 15:41:26,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-11 15:41:26,458 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-11 15:41:26,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:26,459 INFO L225 Difference]: With dead ends: 121 [2020-09-11 15:41:26,459 INFO L226 Difference]: Without dead ends: 112 [2020-09-11 15:41:26,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-11 15:41:26,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-11 15:41:26,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-09-11 15:41:26,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-09-11 15:41:26,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-09-11 15:41:26,465 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 19 [2020-09-11 15:41:26,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:26,465 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-09-11 15:41:26,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-11 15:41:26,465 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-09-11 15:41:26,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-11 15:41:26,466 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:26,466 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:26,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-11 15:41:26,467 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:26,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:26,467 INFO L82 PathProgramCache]: Analyzing trace with hash 188961609, now seen corresponding path program 1 times [2020-09-11 15:41:26,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:26,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618501004] [2020-09-11 15:41:26,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:26,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:26,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:26,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618501004] [2020-09-11 15:41:26,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:26,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-11 15:41:26,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801231323] [2020-09-11 15:41:26,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:41:26,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:26,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:41:26,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:41:26,542 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 5 states. [2020-09-11 15:41:26,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:26,575 INFO L93 Difference]: Finished difference Result 146 states and 329 transitions. [2020-09-11 15:41:26,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 15:41:26,576 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-09-11 15:41:26,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:26,577 INFO L225 Difference]: With dead ends: 146 [2020-09-11 15:41:26,577 INFO L226 Difference]: Without dead ends: 52 [2020-09-11 15:41:26,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-11 15:41:26,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-11 15:41:26,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-09-11 15:41:26,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-11 15:41:26,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-09-11 15:41:26,580 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 21 [2020-09-11 15:41:26,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:26,580 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-09-11 15:41:26,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:41:26,580 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-09-11 15:41:26,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-11 15:41:26,581 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:26,581 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:26,581 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-11 15:41:26,581 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:26,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:26,582 INFO L82 PathProgramCache]: Analyzing trace with hash -62971415, now seen corresponding path program 2 times [2020-09-11 15:41:26,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:26,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659601956] [2020-09-11 15:41:26,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:26,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:26,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659601956] [2020-09-11 15:41:26,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:26,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-11 15:41:26,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002678217] [2020-09-11 15:41:26,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:41:26,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:26,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:41:26,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:41:26,651 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 5 states. [2020-09-11 15:41:26,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:26,677 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-09-11 15:41:26,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 15:41:26,678 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-09-11 15:41:26,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:26,678 INFO L225 Difference]: With dead ends: 51 [2020-09-11 15:41:26,678 INFO L226 Difference]: Without dead ends: 0 [2020-09-11 15:41:26,679 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-11 15:41:26,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-11 15:41:26,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-11 15:41:26,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-11 15:41:26,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-11 15:41:26,680 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-09-11 15:41:26,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:26,680 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-11 15:41:26,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:41:26,680 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-11 15:41:26,680 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-11 15:41:26,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-11 15:41:26,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 03:41:26 BasicIcfg [2020-09-11 15:41:26,686 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 15:41:26,688 INFO L168 Benchmark]: Toolchain (without parser) took 6275.65 ms. Allocated memory was 140.5 MB in the beginning and 288.9 MB in the end (delta: 148.4 MB). Free memory was 102.5 MB in the beginning and 182.6 MB in the end (delta: -80.1 MB). Peak memory consumption was 68.2 MB. Max. memory is 7.1 GB. [2020-09-11 15:41:26,689 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-11 15:41:26,690 INFO L168 Benchmark]: CACSL2BoogieTranslator took 776.60 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.9 MB in the beginning and 158.8 MB in the end (delta: -57.0 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2020-09-11 15:41:26,691 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.05 ms. Allocated memory is still 203.9 MB. Free memory was 158.8 MB in the beginning and 156.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-11 15:41:26,692 INFO L168 Benchmark]: Boogie Preprocessor took 32.45 ms. Allocated memory is still 203.9 MB. Free memory was 156.1 MB in the beginning and 154.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-11 15:41:26,692 INFO L168 Benchmark]: RCFGBuilder took 516.88 ms. Allocated memory is still 203.9 MB. Free memory was 154.8 MB in the beginning and 130.3 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-09-11 15:41:26,693 INFO L168 Benchmark]: TraceAbstraction took 4877.38 ms. Allocated memory was 203.9 MB in the beginning and 288.9 MB in the end (delta: 84.9 MB). Free memory was 129.7 MB in the beginning and 182.6 MB in the end (delta: -53.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. [2020-09-11 15:41:26,698 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 776.60 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.9 MB in the beginning and 158.8 MB in the end (delta: -57.0 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 62.05 ms. Allocated memory is still 203.9 MB. Free memory was 158.8 MB in the beginning and 156.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.45 ms. Allocated memory is still 203.9 MB. Free memory was 156.1 MB in the beginning and 154.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 516.88 ms. Allocated memory is still 203.9 MB. Free memory was 154.8 MB in the beginning and 130.3 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4877.38 ms. Allocated memory was 203.9 MB in the beginning and 288.9 MB in the end (delta: 84.9 MB). Free memory was 129.7 MB in the beginning and 182.6 MB in the end (delta: -53.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.0s, 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: 4.7s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 267 SDtfs, 301 SDslu, 479 SDs, 0 SdLazy, 217 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s 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, 0.9s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 6930 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...