/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/safe015_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 22:49:44,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 22:49:44,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 22:49:44,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 22:49:44,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 22:49:44,878 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 22:49:44,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 22:49:44,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 22:49:44,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 22:49:44,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 22:49:44,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 22:49:44,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 22:49:44,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 22:49:44,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 22:49:44,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 22:49:44,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 22:49:44,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 22:49:44,900 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 22:49:44,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 22:49:44,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 22:49:44,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 22:49:44,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 22:49:44,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 22:49:44,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 22:49:44,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-05 22:49:44,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-05 22:49:44,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-05 22:49:44,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-05 22:49:44,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-05 22:49:44,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-05 22:49:44,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 22:49:44,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 22:49:44,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 22:49:44,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 22:49:44,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 22:49:44,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 22:49:44,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 22:49:44,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 22:49:44,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 22:49:44,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 22:49:44,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 22:49:44,919 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 [2020-10-05 22:49:44,941 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 22:49:44,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 22:49:44,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 22:49:44,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 22:49:44,943 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 22:49:44,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 22:49:44,943 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 22:49:44,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 22:49:44,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 22:49:44,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 22:49:44,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 22:49:44,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 22:49:44,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 22:49:44,945 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 22:49:44,945 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 22:49:44,945 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 22:49:44,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 22:49:44,946 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 22:49:44,946 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 22:49:44,946 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 22:49:44,946 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 22:49:44,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 22:49:44,947 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 22:49:44,947 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-05 22:49:44,947 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 22:49:44,947 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 22:49:44,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 22:49:44,948 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 22:49:44,948 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-05 22:49:44,948 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-05 22:49:45,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 22:49:45,236 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 22:49:45,240 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 22:49:45,241 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 22:49:45,242 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 22:49:45,243 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.opt.i [2020-10-05 22:49:45,313 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b12e174cf/7bfb6b0898f04bf09cd13570536627ea/FLAG0b0522f09 [2020-10-05 22:49:45,855 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 22:49:45,856 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.opt.i [2020-10-05 22:49:45,870 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b12e174cf/7bfb6b0898f04bf09cd13570536627ea/FLAG0b0522f09 [2020-10-05 22:49:46,080 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b12e174cf/7bfb6b0898f04bf09cd13570536627ea [2020-10-05 22:49:46,090 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 22:49:46,092 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 22:49:46,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 22:49:46,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 22:49:46,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 22:49:46,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:49:46" (1/1) ... [2020-10-05 22:49:46,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d3d8f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:46, skipping insertion in model container [2020-10-05 22:49:46,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:49:46" (1/1) ... [2020-10-05 22:49:46,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 22:49:46,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 22:49:46,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:49:46,652 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 22:49:46,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:49:46,808 INFO L208 MainTranslator]: Completed translation [2020-10-05 22:49:46,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:46 WrapperNode [2020-10-05 22:49:46,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 22:49:46,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 22:49:46,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 22:49:46,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 22:49:46,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:46" (1/1) ... [2020-10-05 22:49:46,836 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:46" (1/1) ... [2020-10-05 22:49:46,858 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 22:49:46,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 22:49:46,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 22:49:46,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 22:49:46,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:46" (1/1) ... [2020-10-05 22:49:46,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:46" (1/1) ... [2020-10-05 22:49:46,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:46" (1/1) ... [2020-10-05 22:49:46,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:46" (1/1) ... [2020-10-05 22:49:46,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:46" (1/1) ... [2020-10-05 22:49:46,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:46" (1/1) ... [2020-10-05 22:49:46,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:46" (1/1) ... [2020-10-05 22:49:46,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 22:49:46,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 22:49:46,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 22:49:46,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 22:49:46,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:46" (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 [2020-10-05 22:49:46,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 22:49:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-05 22:49:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 22:49:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 22:49:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-05 22:49:46,955 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-05 22:49:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-05 22:49:46,956 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-05 22:49:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-05 22:49:46,956 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-05 22:49:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-05 22:49:46,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 22:49:46,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 22:49:46,963 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 22:49:47,353 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 22:49:47,353 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-05 22:49:47,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:49:47 BoogieIcfgContainer [2020-10-05 22:49:47,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 22:49:47,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 22:49:47,358 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 22:49:47,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 22:49:47,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:49:46" (1/3) ... [2020-10-05 22:49:47,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fcac2f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:49:47, skipping insertion in model container [2020-10-05 22:49:47,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:46" (2/3) ... [2020-10-05 22:49:47,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fcac2f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:49:47, skipping insertion in model container [2020-10-05 22:49:47,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:49:47" (3/3) ... [2020-10-05 22:49:47,365 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_pso.opt.i [2020-10-05 22:49:47,377 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 22:49:47,377 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-05 22:49:47,385 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 22:49:47,386 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 22:49:47,423 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,423 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,423 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,425 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,426 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,426 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,427 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,427 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,427 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,427 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,428 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,429 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,430 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,430 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,430 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,430 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,431 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,435 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,435 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,435 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,435 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,441 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,441 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,441 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,442 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,444 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,444 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,444 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,444 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,459 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-05 22:49:47,478 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:49:47,478 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:49:47,478 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:49:47,479 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:49:47,479 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:49:47,479 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:49:47,479 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:49:47,479 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:49:47,494 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-05 22:49:47,496 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-05 22:49:47,542 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-05 22:49:47,542 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:49:47,548 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-05 22:49:47,551 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-05 22:49:47,571 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-05 22:49:47,571 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:49:47,572 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-05 22:49:47,576 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-10-05 22:49:47,577 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:49:49,148 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2826 [2020-10-05 22:49:49,148 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-10-05 22:49:49,152 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-05 22:49:49,178 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-05 22:49:49,180 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-05 22:49:49,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 22:49:49,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:49,189 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:49,190 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:49,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:49,196 INFO L82 PathProgramCache]: Analyzing trace with hash -2122060928, now seen corresponding path program 1 times [2020-10-05 22:49:49,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:49,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195742091] [2020-10-05 22:49:49,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:49,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:49,430 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195742091] [2020-10-05 22:49:49,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:49,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 22:49:49,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554491233] [2020-10-05 22:49:49,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:49:49,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:49,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:49:49,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:49,455 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-05 22:49:49,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:49,505 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-05 22:49:49,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:49:49,507 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-05 22:49:49,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:49,526 INFO L225 Difference]: With dead ends: 282 [2020-10-05 22:49:49,527 INFO L226 Difference]: Without dead ends: 218 [2020-10-05 22:49:49,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:49,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-05 22:49:49,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-05 22:49:49,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-05 22:49:49,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-05 22:49:49,607 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-05 22:49:49,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:49,609 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-05 22:49:49,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:49:49,609 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-05 22:49:49,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 22:49:49,611 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:49,611 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:49,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 22:49:49,611 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:49,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:49,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1372085576, now seen corresponding path program 1 times [2020-10-05 22:49:49,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:49,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549467326] [2020-10-05 22:49:49,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:49,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:49,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:49,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549467326] [2020-10-05 22:49:49,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:49,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:49:49,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865275722] [2020-10-05 22:49:49,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:49:49,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:49,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:49:49,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:49,707 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-10-05 22:49:49,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:49,739 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-10-05 22:49:49,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:49:49,740 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-05 22:49:49,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:49,743 INFO L225 Difference]: With dead ends: 202 [2020-10-05 22:49:49,743 INFO L226 Difference]: Without dead ends: 202 [2020-10-05 22:49:49,744 INFO L675 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 [2020-10-05 22:49:49,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-05 22:49:49,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-05 22:49:49,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-05 22:49:49,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-05 22:49:49,769 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-10-05 22:49:49,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:49,770 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-05 22:49:49,770 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:49:49,771 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-05 22:49:49,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-05 22:49:49,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:49,772 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:49,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 22:49:49,773 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:49,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:49,773 INFO L82 PathProgramCache]: Analyzing trace with hash 365373016, now seen corresponding path program 1 times [2020-10-05 22:49:49,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:49,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158865356] [2020-10-05 22:49:49,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:49,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:49,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158865356] [2020-10-05 22:49:49,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:49,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 22:49:49,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73613097] [2020-10-05 22:49:49,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:49:49,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:49,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:49:49,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:49,853 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-10-05 22:49:49,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:49,862 INFO L93 Difference]: Finished difference Result 198 states and 530 transitions. [2020-10-05 22:49:49,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:49:49,862 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-05 22:49:49,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:49,864 INFO L225 Difference]: With dead ends: 198 [2020-10-05 22:49:49,865 INFO L226 Difference]: Without dead ends: 198 [2020-10-05 22:49:49,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:49,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-05 22:49:49,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-10-05 22:49:49,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-05 22:49:49,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 530 transitions. [2020-10-05 22:49:49,879 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 530 transitions. Word has length 10 [2020-10-05 22:49:49,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:49,880 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 530 transitions. [2020-10-05 22:49:49,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:49:49,880 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 530 transitions. [2020-10-05 22:49:49,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 22:49:49,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:49,884 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:49,884 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 22:49:49,884 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:49,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:49,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1571968161, now seen corresponding path program 1 times [2020-10-05 22:49:49,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:49,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505738700] [2020-10-05 22:49:49,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:49,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:49,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:49,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505738700] [2020-10-05 22:49:49,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:49,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 22:49:49,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355522117] [2020-10-05 22:49:49,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:49:49,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:49,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:49:49,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:49,943 INFO L87 Difference]: Start difference. First operand 198 states and 530 transitions. Second operand 3 states. [2020-10-05 22:49:49,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:49,949 INFO L93 Difference]: Finished difference Result 192 states and 511 transitions. [2020-10-05 22:49:49,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:49:49,949 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-05 22:49:49,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:49,951 INFO L225 Difference]: With dead ends: 192 [2020-10-05 22:49:49,951 INFO L226 Difference]: Without dead ends: 192 [2020-10-05 22:49:49,952 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:49,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-05 22:49:49,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-10-05 22:49:49,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-10-05 22:49:49,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 511 transitions. [2020-10-05 22:49:49,964 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 511 transitions. Word has length 11 [2020-10-05 22:49:49,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:49,964 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 511 transitions. [2020-10-05 22:49:49,964 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:49:49,965 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 511 transitions. [2020-10-05 22:49:49,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 22:49:49,966 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:49,966 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:49,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 22:49:49,967 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:49,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:49,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1486373385, now seen corresponding path program 1 times [2020-10-05 22:49:49,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:49,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935513474] [2020-10-05 22:49:49,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:50,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:50,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935513474] [2020-10-05 22:49:50,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:50,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:49:50,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172809344] [2020-10-05 22:49:50,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:49:50,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:50,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:49:50,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:49:50,099 INFO L87 Difference]: Start difference. First operand 192 states and 511 transitions. Second operand 4 states. [2020-10-05 22:49:50,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:50,149 INFO L93 Difference]: Finished difference Result 224 states and 554 transitions. [2020-10-05 22:49:50,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:49:50,152 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 22:49:50,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:50,154 INFO L225 Difference]: With dead ends: 224 [2020-10-05 22:49:50,154 INFO L226 Difference]: Without dead ends: 160 [2020-10-05 22:49:50,155 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 [2020-10-05 22:49:50,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-05 22:49:50,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-10-05 22:49:50,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-10-05 22:49:50,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 383 transitions. [2020-10-05 22:49:50,175 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 383 transitions. Word has length 12 [2020-10-05 22:49:50,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:50,176 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 383 transitions. [2020-10-05 22:49:50,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:49:50,176 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 383 transitions. [2020-10-05 22:49:50,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 22:49:50,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:50,178 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:50,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 22:49:50,178 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:50,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:50,179 INFO L82 PathProgramCache]: Analyzing trace with hash 887113091, now seen corresponding path program 1 times [2020-10-05 22:49:50,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:50,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853262795] [2020-10-05 22:49:50,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:50,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:50,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853262795] [2020-10-05 22:49:50,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:50,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:49:50,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392202685] [2020-10-05 22:49:50,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:49:50,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:50,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:49:50,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:49:50,296 INFO L87 Difference]: Start difference. First operand 160 states and 383 transitions. Second operand 5 states. [2020-10-05 22:49:50,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:50,339 INFO L93 Difference]: Finished difference Result 160 states and 362 transitions. [2020-10-05 22:49:50,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 22:49:50,340 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-05 22:49:50,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:50,341 INFO L225 Difference]: With dead ends: 160 [2020-10-05 22:49:50,341 INFO L226 Difference]: Without dead ends: 123 [2020-10-05 22:49:50,342 INFO L675 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 [2020-10-05 22:49:50,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-10-05 22:49:50,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-10-05 22:49:50,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-05 22:49:50,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 272 transitions. [2020-10-05 22:49:50,347 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 272 transitions. Word has length 13 [2020-10-05 22:49:50,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:50,347 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 272 transitions. [2020-10-05 22:49:50,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:49:50,347 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-10-05 22:49:50,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 22:49:50,348 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:50,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:50,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 22:49:50,349 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:50,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:50,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1920279248, now seen corresponding path program 1 times [2020-10-05 22:49:50,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:50,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380409067] [2020-10-05 22:49:50,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:50,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:50,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380409067] [2020-10-05 22:49:50,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:50,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:49:50,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898499551] [2020-10-05 22:49:50,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:49:50,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:50,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:49:50,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:50,380 INFO L87 Difference]: Start difference. First operand 123 states and 272 transitions. Second operand 3 states. [2020-10-05 22:49:50,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:50,389 INFO L93 Difference]: Finished difference Result 155 states and 330 transitions. [2020-10-05 22:49:50,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:49:50,389 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-05 22:49:50,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:50,391 INFO L225 Difference]: With dead ends: 155 [2020-10-05 22:49:50,391 INFO L226 Difference]: Without dead ends: 124 [2020-10-05 22:49:50,391 INFO L675 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 [2020-10-05 22:49:50,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-05 22:49:50,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2020-10-05 22:49:50,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-05 22:49:50,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 257 transitions. [2020-10-05 22:49:50,396 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 257 transitions. Word has length 14 [2020-10-05 22:49:50,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:50,396 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 257 transitions. [2020-10-05 22:49:50,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:49:50,396 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 257 transitions. [2020-10-05 22:49:50,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 22:49:50,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:50,397 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:50,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 22:49:50,398 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:50,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:50,398 INFO L82 PathProgramCache]: Analyzing trace with hash 451653261, now seen corresponding path program 1 times [2020-10-05 22:49:50,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:50,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883550096] [2020-10-05 22:49:50,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:50,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:50,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883550096] [2020-10-05 22:49:50,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:50,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:49:50,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454342323] [2020-10-05 22:49:50,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:49:50,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:50,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:49:50,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:49:50,437 INFO L87 Difference]: Start difference. First operand 122 states and 257 transitions. Second operand 4 states. [2020-10-05 22:49:50,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:50,459 INFO L93 Difference]: Finished difference Result 154 states and 308 transitions. [2020-10-05 22:49:50,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 22:49:50,459 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-05 22:49:50,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:50,460 INFO L225 Difference]: With dead ends: 154 [2020-10-05 22:49:50,461 INFO L226 Difference]: Without dead ends: 116 [2020-10-05 22:49:50,461 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 [2020-10-05 22:49:50,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-05 22:49:50,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2020-10-05 22:49:50,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-05 22:49:50,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 222 transitions. [2020-10-05 22:49:50,466 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 222 transitions. Word has length 15 [2020-10-05 22:49:50,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:50,466 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 222 transitions. [2020-10-05 22:49:50,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:49:50,466 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 222 transitions. [2020-10-05 22:49:50,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 22:49:50,467 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:50,467 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:50,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-05 22:49:50,468 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:50,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:50,468 INFO L82 PathProgramCache]: Analyzing trace with hash -600886075, now seen corresponding path program 1 times [2020-10-05 22:49:50,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:50,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818938038] [2020-10-05 22:49:50,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:50,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:50,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:50,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818938038] [2020-10-05 22:49:50,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:50,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 22:49:50,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139510464] [2020-10-05 22:49:50,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-05 22:49:50,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:50,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-05 22:49:50,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 22:49:50,531 INFO L87 Difference]: Start difference. First operand 114 states and 222 transitions. Second operand 6 states. [2020-10-05 22:49:50,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:50,580 INFO L93 Difference]: Finished difference Result 110 states and 212 transitions. [2020-10-05 22:49:50,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 22:49:50,580 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-05 22:49:50,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:50,581 INFO L225 Difference]: With dead ends: 110 [2020-10-05 22:49:50,581 INFO L226 Difference]: Without dead ends: 38 [2020-10-05 22:49:50,582 INFO L675 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 [2020-10-05 22:49:50,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-05 22:49:50,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-05 22:49:50,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-05 22:49:50,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2020-10-05 22:49:50,584 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 62 transitions. Word has length 15 [2020-10-05 22:49:50,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:50,584 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 62 transitions. [2020-10-05 22:49:50,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-05 22:49:50,584 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-10-05 22:49:50,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 22:49:50,585 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:50,585 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:50,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-05 22:49:50,585 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:50,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:50,586 INFO L82 PathProgramCache]: Analyzing trace with hash 13395029, now seen corresponding path program 1 times [2020-10-05 22:49:50,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:50,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869663486] [2020-10-05 22:49:50,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:50,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:50,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:50,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869663486] [2020-10-05 22:49:50,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:50,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:49:50,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924842929] [2020-10-05 22:49:50,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:49:50,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:50,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:49:50,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:49:50,633 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. Second operand 4 states. [2020-10-05 22:49:50,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:50,650 INFO L93 Difference]: Finished difference Result 51 states and 83 transitions. [2020-10-05 22:49:50,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:49:50,650 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-05 22:49:50,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:50,651 INFO L225 Difference]: With dead ends: 51 [2020-10-05 22:49:50,651 INFO L226 Difference]: Without dead ends: 30 [2020-10-05 22:49:50,652 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 [2020-10-05 22:49:50,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-05 22:49:50,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-05 22:49:50,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-05 22:49:50,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-10-05 22:49:50,653 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-10-05 22:49:50,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:50,654 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-10-05 22:49:50,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:49:50,654 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-10-05 22:49:50,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 22:49:50,654 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:50,655 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:50,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-05 22:49:50,655 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:50,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:50,655 INFO L82 PathProgramCache]: Analyzing trace with hash -34011261, now seen corresponding path program 2 times [2020-10-05 22:49:50,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:50,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675808980] [2020-10-05 22:49:50,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:50,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:50,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:50,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675808980] [2020-10-05 22:49:50,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:50,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:49:50,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083499892] [2020-10-05 22:49:50,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:49:50,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:50,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:49:50,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:49:50,712 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-10-05 22:49:50,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:50,726 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-10-05 22:49:50,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 22:49:50,726 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-05 22:49:50,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:50,727 INFO L225 Difference]: With dead ends: 29 [2020-10-05 22:49:50,727 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 22:49:50,727 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 [2020-10-05 22:49:50,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 22:49:50,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 22:49:50,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 22:49:50,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 22:49:50,728 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-05 22:49:50,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:50,729 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 22:49:50,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:49:50,729 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 22:49:50,729 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 22:49:50,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-05 22:49:50,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:49:50 BasicIcfg [2020-10-05 22:49:50,734 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 22:49:50,736 INFO L168 Benchmark]: Toolchain (without parser) took 4643.78 ms. Allocated memory was 140.5 MB in the beginning and 244.3 MB in the end (delta: 103.8 MB). Free memory was 100.8 MB in the beginning and 110.9 MB in the end (delta: -10.1 MB). Peak memory consumption was 93.7 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:50,737 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-05 22:49:50,738 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.47 ms. Allocated memory was 140.5 MB in the beginning and 206.6 MB in the end (delta: 66.1 MB). Free memory was 100.6 MB in the beginning and 163.9 MB in the end (delta: -63.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:50,739 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.05 ms. Allocated memory is still 206.6 MB. Free memory was 163.9 MB in the beginning and 162.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:50,740 INFO L168 Benchmark]: Boogie Preprocessor took 28.00 ms. Allocated memory is still 206.6 MB. Free memory was 162.0 MB in the beginning and 160.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:50,740 INFO L168 Benchmark]: RCFGBuilder took 469.68 ms. Allocated memory is still 206.6 MB. Free memory was 160.6 MB in the beginning and 138.0 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:50,741 INFO L168 Benchmark]: TraceAbstraction took 3376.33 ms. Allocated memory was 206.6 MB in the beginning and 244.3 MB in the end (delta: 37.7 MB). Free memory was 138.0 MB in the beginning and 110.9 MB in the end (delta: 27.0 MB). Peak memory consumption was 64.8 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:50,745 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 716.47 ms. Allocated memory was 140.5 MB in the beginning and 206.6 MB in the end (delta: 66.1 MB). Free memory was 100.6 MB in the beginning and 163.9 MB in the end (delta: -63.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.05 ms. Allocated memory is still 206.6 MB. Free memory was 163.9 MB in the beginning and 162.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.00 ms. Allocated memory is still 206.6 MB. Free memory was 162.0 MB in the beginning and 160.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 469.68 ms. Allocated memory is still 206.6 MB. Free memory was 160.6 MB in the beginning and 138.0 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3376.33 ms. Allocated memory was 206.6 MB in the beginning and 244.3 MB in the end (delta: 37.7 MB). Free memory was 138.0 MB in the beginning and 110.9 MB in the end (delta: 27.0 MB). Peak memory consumption was 64.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 77 ProgramPointsBefore, 31 ProgramPointsAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 8 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 676 VarBasedMoverChecksPositive, 41 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2826 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, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 216 SDtfs, 131 SDslu, 232 SDs, 0 SdLazy, 130 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s 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, 11 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 4600 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...