/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 00:34:51,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 00:34:51,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 00:34:51,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 00:34:51,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 00:34:51,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 00:34:51,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 00:34:51,894 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 00:34:51,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 00:34:51,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 00:34:51,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 00:34:51,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 00:34:51,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 00:34:51,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 00:34:51,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 00:34:51,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 00:34:51,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 00:34:51,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 00:34:51,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 00:34:51,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 00:34:51,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 00:34:51,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 00:34:51,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 00:34:51,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 00:34:51,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 00:34:51,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 00:34:51,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 00:34:51,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 00:34:51,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 00:34:51,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 00:34:51,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 00:34:51,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 00:34:51,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 00:34:51,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 00:34:51,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 00:34:51,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 00:34:51,948 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 00:34:51,948 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 00:34:51,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 00:34:51,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 00:34:51,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 00:34:51,953 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-22 00:34:51,989 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 00:34:51,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 00:34:51,991 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 00:34:51,991 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 00:34:51,991 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 00:34:51,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 00:34:51,992 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 00:34:51,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 00:34:51,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 00:34:51,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 00:34:51,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 00:34:51,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 00:34:51,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 00:34:51,994 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 00:34:51,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 00:34:51,995 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 00:34:51,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 00:34:51,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 00:34:51,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 00:34:51,996 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 00:34:51,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 00:34:51,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 00:34:51,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 00:34:51,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 00:34:51,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 00:34:51,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 00:34:51,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 00:34:51,997 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 00:34:51,997 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 00:34:51,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 00:34:51,998 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 00:34:52,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 00:34:52,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 00:34:52,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 00:34:52,301 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 00:34:52,301 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 00:34:52,302 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2020-10-22 00:34:52,373 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00ff0fd96/067f9bf953ed494f9351e5174dbd791e/FLAGe690b0ff9 [2020-10-22 00:34:52,936 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 00:34:52,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2020-10-22 00:34:52,950 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00ff0fd96/067f9bf953ed494f9351e5174dbd791e/FLAGe690b0ff9 [2020-10-22 00:34:53,218 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00ff0fd96/067f9bf953ed494f9351e5174dbd791e [2020-10-22 00:34:53,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 00:34:53,234 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 00:34:53,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 00:34:53,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 00:34:53,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 00:34:53,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:34:53" (1/1) ... [2020-10-22 00:34:53,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b95780d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:34:53, skipping insertion in model container [2020-10-22 00:34:53,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:34:53" (1/1) ... [2020-10-22 00:34:53,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 00:34:53,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 00:34:53,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:34:53,932 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 00:34:54,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:34:54,077 INFO L208 MainTranslator]: Completed translation [2020-10-22 00:34:54,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:34:54 WrapperNode [2020-10-22 00:34:54,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 00:34:54,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 00:34:54,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 00:34:54,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 00:34:54,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:34:54" (1/1) ... [2020-10-22 00:34:54,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:34:54" (1/1) ... [2020-10-22 00:34:54,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 00:34:54,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 00:34:54,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 00:34:54,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 00:34:54,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:34:54" (1/1) ... [2020-10-22 00:34:54,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:34:54" (1/1) ... [2020-10-22 00:34:54,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:34:54" (1/1) ... [2020-10-22 00:34:54,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:34:54" (1/1) ... [2020-10-22 00:34:54,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:34:54" (1/1) ... [2020-10-22 00:34:54,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:34:54" (1/1) ... [2020-10-22 00:34:54,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:34:54" (1/1) ... [2020-10-22 00:34:54,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 00:34:54,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 00:34:54,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 00:34:54,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 00:34:54,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:34:54" (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 [2020-10-22 00:34:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 00:34:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 00:34:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 00:34:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 00:34:54,235 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 00:34:54,235 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 00:34:54,235 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 00:34:54,235 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 00:34:54,235 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 00:34:54,235 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 00:34:54,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 00:34:54,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 00:34:54,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 00:34:54,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 00:34:54,238 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 00:34:54,647 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 00:34:54,647 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 00:34:54,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:34:54 BoogieIcfgContainer [2020-10-22 00:34:54,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 00:34:54,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 00:34:54,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 00:34:54,656 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 00:34:54,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 12:34:53" (1/3) ... [2020-10-22 00:34:54,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b822112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:34:54, skipping insertion in model container [2020-10-22 00:34:54,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:34:54" (2/3) ... [2020-10-22 00:34:54,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b822112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:34:54, skipping insertion in model container [2020-10-22 00:34:54,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:34:54" (3/3) ... [2020-10-22 00:34:54,660 INFO L111 eAbstractionObserver]: Analyzing ICFG safe011_tso.opt.i [2020-10-22 00:34:54,672 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 00:34:54,672 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 00:34:54,681 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 00:34:54,682 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 00:34:54,711 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,712 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,712 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,712 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,713 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,713 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,714 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,714 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,715 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,716 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,716 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,716 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,717 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,717 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,717 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,718 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,718 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,718 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,726 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,726 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,726 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,726 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,733 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,733 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,733 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,734 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,736 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,736 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,737 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,737 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:34:54,739 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 00:34:54,754 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 00:34:54,776 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 00:34:54,777 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 00:34:54,777 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 00:34:54,777 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 00:34:54,777 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 00:34:54,777 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 00:34:54,778 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 00:34:54,778 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 00:34:54,793 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 00:34:54,793 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-22 00:34:54,796 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-22 00:34:54,798 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-10-22 00:34:54,848 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-10-22 00:34:54,848 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 00:34:54,853 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-22 00:34:54,856 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-22 00:34:56,736 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-10-22 00:34:56,852 INFO L131 LiptonReduction]: Checked pairs total: 3321 [2020-10-22 00:34:56,853 INFO L133 LiptonReduction]: Total number of compositions: 75 [2020-10-22 00:34:56,861 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-22 00:34:56,908 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-22 00:34:56,911 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-22 00:34:56,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 00:34:56,924 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:34:56,925 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:34:56,925 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:34:56,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:34:56,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1248499387, now seen corresponding path program 1 times [2020-10-22 00:34:56,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:34:56,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099248187] [2020-10-22 00:34:56,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:34:57,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:34:57,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:34:57,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099248187] [2020-10-22 00:34:57,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:34:57,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 00:34:57,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1285607770] [2020-10-22 00:34:57,182 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:34:57,185 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:34:57,200 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 00:34:57,200 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:34:57,204 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:34:57,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:34:57,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:34:57,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:34:57,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:34:57,223 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-22 00:34:57,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:34:57,264 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-10-22 00:34:57,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:34:57,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-22 00:34:57,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:34:57,281 INFO L225 Difference]: With dead ends: 290 [2020-10-22 00:34:57,281 INFO L226 Difference]: Without dead ends: 226 [2020-10-22 00:34:57,283 INFO L677 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 [2020-10-22 00:34:57,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-22 00:34:57,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-22 00:34:57,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-22 00:34:57,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-10-22 00:34:57,353 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-10-22 00:34:57,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:34:57,354 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-10-22 00:34:57,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:34:57,355 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-10-22 00:34:57,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 00:34:57,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:34:57,356 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:34:57,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 00:34:57,357 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:34:57,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:34:57,357 INFO L82 PathProgramCache]: Analyzing trace with hash -219086654, now seen corresponding path program 1 times [2020-10-22 00:34:57,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:34:57,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082010924] [2020-10-22 00:34:57,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:34:57,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:34:57,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:34:57,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082010924] [2020-10-22 00:34:57,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:34:57,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 00:34:57,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1141476699] [2020-10-22 00:34:57,433 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:34:57,434 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:34:57,436 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 19 transitions. [2020-10-22 00:34:57,437 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:34:57,510 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:34:57,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:34:57,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:34:57,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:34:57,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:34:57,513 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-10-22 00:34:57,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:34:57,522 INFO L93 Difference]: Finished difference Result 214 states and 585 transitions. [2020-10-22 00:34:57,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:34:57,522 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-22 00:34:57,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:34:57,525 INFO L225 Difference]: With dead ends: 214 [2020-10-22 00:34:57,526 INFO L226 Difference]: Without dead ends: 214 [2020-10-22 00:34:57,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:34:57,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-10-22 00:34:57,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-10-22 00:34:57,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-10-22 00:34:57,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 585 transitions. [2020-10-22 00:34:57,549 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 585 transitions. Word has length 9 [2020-10-22 00:34:57,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:34:57,549 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 585 transitions. [2020-10-22 00:34:57,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:34:57,549 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 585 transitions. [2020-10-22 00:34:57,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 00:34:57,551 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:34:57,551 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:34:57,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 00:34:57,552 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:34:57,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:34:57,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1798247302, now seen corresponding path program 1 times [2020-10-22 00:34:57,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:34:57,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910269330] [2020-10-22 00:34:57,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:34:57,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:34:57,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:34:57,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910269330] [2020-10-22 00:34:57,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:34:57,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:34:57,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [981664137] [2020-10-22 00:34:57,665 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:34:57,666 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:34:57,668 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 27 transitions. [2020-10-22 00:34:57,668 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:34:57,782 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:34:57,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:34:57,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:34:57,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:34:57,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:34:57,784 INFO L87 Difference]: Start difference. First operand 214 states and 585 transitions. Second operand 4 states. [2020-10-22 00:34:57,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:34:57,806 INFO L93 Difference]: Finished difference Result 240 states and 627 transitions. [2020-10-22 00:34:57,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 00:34:57,807 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-22 00:34:57,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:34:57,808 INFO L225 Difference]: With dead ends: 240 [2020-10-22 00:34:57,809 INFO L226 Difference]: Without dead ends: 144 [2020-10-22 00:34:57,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:34:57,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-22 00:34:57,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-10-22 00:34:57,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-22 00:34:57,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 355 transitions. [2020-10-22 00:34:57,823 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 355 transitions. Word has length 10 [2020-10-22 00:34:57,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:34:57,823 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 355 transitions. [2020-10-22 00:34:57,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:34:57,823 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 355 transitions. [2020-10-22 00:34:57,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 00:34:57,825 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:34:57,825 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:34:57,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 00:34:57,825 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:34:57,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:34:57,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1306895020, now seen corresponding path program 1 times [2020-10-22 00:34:57,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:34:57,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973365268] [2020-10-22 00:34:57,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:34:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:34:57,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:34:57,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973365268] [2020-10-22 00:34:57,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:34:57,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:34:57,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1170639372] [2020-10-22 00:34:57,925 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:34:57,926 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:34:57,930 INFO L252 McrAutomatonBuilder]: Finished intersection with 35 states and 63 transitions. [2020-10-22 00:34:57,931 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:34:57,958 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 00:34:58,011 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 00:34:58,038 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 00:34:58,084 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 00:34:58,335 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2612#(not (= 3 ~__unbuffered_cnt~0))] [2020-10-22 00:34:58,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:34:58,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:34:58,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:34:58,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:34:58,336 INFO L87 Difference]: Start difference. First operand 144 states and 355 transitions. Second operand 5 states. [2020-10-22 00:34:58,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:34:58,395 INFO L93 Difference]: Finished difference Result 137 states and 312 transitions. [2020-10-22 00:34:58,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 00:34:58,396 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-22 00:34:58,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:34:58,398 INFO L225 Difference]: With dead ends: 137 [2020-10-22 00:34:58,398 INFO L226 Difference]: Without dead ends: 97 [2020-10-22 00:34:58,398 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:34:58,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-22 00:34:58,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-10-22 00:34:58,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-22 00:34:58,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-10-22 00:34:58,405 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 12 [2020-10-22 00:34:58,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:34:58,406 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-10-22 00:34:58,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:34:58,406 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-10-22 00:34:58,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 00:34:58,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:34:58,407 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:34:58,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 00:34:58,408 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:34:58,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:34:58,408 INFO L82 PathProgramCache]: Analyzing trace with hash 111718158, now seen corresponding path program 1 times [2020-10-22 00:34:58,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:34:58,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491908539] [2020-10-22 00:34:58,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:34:58,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:34:58,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:34:58,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491908539] [2020-10-22 00:34:58,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:34:58,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:34:58,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [356932265] [2020-10-22 00:34:58,450 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:34:58,451 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:34:58,454 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 22 transitions. [2020-10-22 00:34:58,454 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:34:58,460 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:34:58,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:34:58,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:34:58,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:34:58,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:34:58,479 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 3 states. [2020-10-22 00:34:58,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:34:58,488 INFO L93 Difference]: Finished difference Result 115 states and 230 transitions. [2020-10-22 00:34:58,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:34:58,489 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-22 00:34:58,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:34:58,490 INFO L225 Difference]: With dead ends: 115 [2020-10-22 00:34:58,490 INFO L226 Difference]: Without dead ends: 98 [2020-10-22 00:34:58,490 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:34:58,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-22 00:34:58,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2020-10-22 00:34:58,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-22 00:34:58,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 193 transitions. [2020-10-22 00:34:58,496 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 193 transitions. Word has length 14 [2020-10-22 00:34:58,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:34:58,496 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 193 transitions. [2020-10-22 00:34:58,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:34:58,497 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 193 transitions. [2020-10-22 00:34:58,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-22 00:34:58,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:34:58,498 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:34:58,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 00:34:58,498 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:34:58,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:34:58,499 INFO L82 PathProgramCache]: Analyzing trace with hash 567564355, now seen corresponding path program 1 times [2020-10-22 00:34:58,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:34:58,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292020312] [2020-10-22 00:34:58,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:34:58,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:34:58,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:34:58,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292020312] [2020-10-22 00:34:58,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:34:58,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 00:34:58,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1797707685] [2020-10-22 00:34:58,569 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:34:58,571 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:34:58,579 INFO L252 McrAutomatonBuilder]: Finished intersection with 57 states and 102 transitions. [2020-10-22 00:34:58,579 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:34:58,885 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3264#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 00:34:58,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 00:34:58,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:34:58,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 00:34:58,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:34:58,887 INFO L87 Difference]: Start difference. First operand 96 states and 193 transitions. Second operand 7 states. [2020-10-22 00:34:58,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:34:58,939 INFO L93 Difference]: Finished difference Result 92 states and 183 transitions. [2020-10-22 00:34:58,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 00:34:58,940 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-22 00:34:58,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:34:58,940 INFO L225 Difference]: With dead ends: 92 [2020-10-22 00:34:58,940 INFO L226 Difference]: Without dead ends: 36 [2020-10-22 00:34:58,941 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-22 00:34:58,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-22 00:34:58,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-22 00:34:58,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-22 00:34:58,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-10-22 00:34:58,943 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 15 [2020-10-22 00:34:58,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:34:58,944 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-10-22 00:34:58,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 00:34:58,944 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-10-22 00:34:58,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 00:34:58,945 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:34:58,945 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:34:58,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 00:34:58,945 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:34:58,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:34:58,946 INFO L82 PathProgramCache]: Analyzing trace with hash -170339707, now seen corresponding path program 1 times [2020-10-22 00:34:58,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:34:58,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591178402] [2020-10-22 00:34:58,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:34:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:34:58,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:34:58,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591178402] [2020-10-22 00:34:58,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:34:58,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:34:58,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [807354334] [2020-10-22 00:34:58,989 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:34:58,991 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:34:58,999 INFO L252 McrAutomatonBuilder]: Finished intersection with 50 states and 84 transitions. [2020-10-22 00:34:58,999 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:34:59,026 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:34:59,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:34:59,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:34:59,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:34:59,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:34:59,027 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 3 states. [2020-10-22 00:34:59,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:34:59,034 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-10-22 00:34:59,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:34:59,034 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-22 00:34:59,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:34:59,035 INFO L225 Difference]: With dead ends: 35 [2020-10-22 00:34:59,035 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 00:34:59,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:34:59,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 00:34:59,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 00:34:59,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 00:34:59,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 00:34:59,036 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-22 00:34:59,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:34:59,037 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 00:34:59,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:34:59,037 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 00:34:59,037 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 00:34:59,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 00:34:59,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 12:34:59 BasicIcfg [2020-10-22 00:34:59,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 00:34:59,049 INFO L168 Benchmark]: Toolchain (without parser) took 5819.41 ms. Allocated memory was 139.5 MB in the beginning and 282.1 MB in the end (delta: 142.6 MB). Free memory was 100.7 MB in the beginning and 166.6 MB in the end (delta: -65.9 MB). Peak memory consumption was 76.7 MB. Max. memory is 7.1 GB. [2020-10-22 00:34:59,052 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-22 00:34:59,053 INFO L168 Benchmark]: CACSL2BoogieTranslator took 842.70 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 99.7 MB in the beginning and 159.5 MB in the end (delta: -59.9 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-10-22 00:34:59,054 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.27 ms. Allocated memory is still 203.4 MB. Free memory was 158.9 MB in the beginning and 156.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 00:34:59,056 INFO L168 Benchmark]: Boogie Preprocessor took 28.53 ms. Allocated memory is still 203.4 MB. Free memory was 156.9 MB in the beginning and 155.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-22 00:34:59,057 INFO L168 Benchmark]: RCFGBuilder took 494.23 ms. Allocated memory is still 203.4 MB. Free memory was 155.5 MB in the beginning and 131.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-10-22 00:34:59,061 INFO L168 Benchmark]: TraceAbstraction took 4394.24 ms. Allocated memory was 203.4 MB in the beginning and 282.1 MB in the end (delta: 78.6 MB). Free memory was 131.4 MB in the beginning and 166.6 MB in the end (delta: -35.2 MB). Peak memory consumption was 43.5 MB. Max. memory is 7.1 GB. [2020-10-22 00:34:59,066 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 842.70 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 99.7 MB in the beginning and 159.5 MB in the end (delta: -59.9 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.27 ms. Allocated memory is still 203.4 MB. Free memory was 158.9 MB in the beginning and 156.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.53 ms. Allocated memory is still 203.4 MB. Free memory was 156.9 MB in the beginning and 155.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 494.23 ms. Allocated memory is still 203.4 MB. Free memory was 155.5 MB in the beginning and 131.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4394.24 ms. Allocated memory was 203.4 MB in the beginning and 282.1 MB in the end (delta: 78.6 MB). Free memory was 131.4 MB in the beginning and 166.6 MB in the end (delta: -35.2 MB). Peak memory consumption was 43.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 803 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 56 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.0s, 85 PlacesBefore, 31 PlacesAfterwards, 78 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 75 TotalNumberOfCompositions, 3321 MoverChecksTotal - PositiveResult [Line: 17]: 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, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 125 SDtfs, 84 SDslu, 138 SDs, 0 SdLazy, 77 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 2346 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...