/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/safe019_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:40:49,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:40:49,937 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:40:49,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:40:49,963 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:40:49,964 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:40:49,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:40:49,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:40:49,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:40:49,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:40:49,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:40:49,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:40:49,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:40:49,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:40:49,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:40:49,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:40:49,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:40:49,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:40:49,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:40:49,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:40:49,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:40:49,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:40:49,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:40:49,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:40:49,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 13:40:49,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:40:49,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:40:49,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:40:49,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:40:49,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:40:49,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:40:49,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:40:49,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:40:49,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:40:49,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:40:49,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:40:49,999 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 13:40:50,046 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:40:50,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:40:50,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:40:50,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:40:50,051 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:40:50,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:40:50,052 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:40:50,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:40:50,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:40:50,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:40:50,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:40:50,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:40:50,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:40:50,053 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:40:50,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:40:50,053 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:40:50,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:40:50,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:40:50,054 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:40:50,054 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:40:50,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:40:50,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:40:50,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:40:50,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:40:50,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:40:50,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:40:50,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:40:50,058 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:40:50,059 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:40:50,059 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:40:50,060 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:40:50,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:40:50,345 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:40:50,349 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:40:50,350 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:40:50,350 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:40:50,351 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2020-10-16 13:40:50,412 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5d0cbe27/333425f197cd4190b0f31d7f345d8bd0/FLAG29bcabeff [2020-10-16 13:40:50,943 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:40:50,944 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2020-10-16 13:40:50,958 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5d0cbe27/333425f197cd4190b0f31d7f345d8bd0/FLAG29bcabeff [2020-10-16 13:40:51,183 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5d0cbe27/333425f197cd4190b0f31d7f345d8bd0 [2020-10-16 13:40:51,193 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:40:51,195 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:40:51,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:40:51,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:40:51,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:40:51,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:40:51" (1/1) ... [2020-10-16 13:40:51,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@230a6e65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:51, skipping insertion in model container [2020-10-16 13:40:51,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:40:51" (1/1) ... [2020-10-16 13:40:51,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:40:51,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:40:51,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:40:51,712 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:40:51,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:40:51,840 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:40:51,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:51 WrapperNode [2020-10-16 13:40:51,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:40:51,842 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:40:51,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:40:51,842 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:40:51,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:51" (1/1) ... [2020-10-16 13:40:51,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:51" (1/1) ... [2020-10-16 13:40:51,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:40:51,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:40:51,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:40:51,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:40:51,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:51" (1/1) ... [2020-10-16 13:40:51,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:51" (1/1) ... [2020-10-16 13:40:51,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:51" (1/1) ... [2020-10-16 13:40:51,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:51" (1/1) ... [2020-10-16 13:40:51,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:51" (1/1) ... [2020-10-16 13:40:51,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:51" (1/1) ... [2020-10-16 13:40:51,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:51" (1/1) ... [2020-10-16 13:40:51,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:40:51,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:40:51,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:40:51,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:40:51,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:40:51,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:40:51,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:40:51,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:40:51,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:40:51,991 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:40:51,991 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:40:51,991 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:40:51,992 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:40:51,992 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 13:40:51,992 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 13:40:51,992 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-16 13:40:51,992 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-16 13:40:51,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:40:51,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:40:51,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:40:51,994 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 13:40:52,376 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:40:52,377 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 13:40:52,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:40:52 BoogieIcfgContainer [2020-10-16 13:40:52,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:40:52,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:40:52,381 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:40:52,384 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:40:52,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:40:51" (1/3) ... [2020-10-16 13:40:52,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be2109d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:40:52, skipping insertion in model container [2020-10-16 13:40:52,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:40:51" (2/3) ... [2020-10-16 13:40:52,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be2109d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:40:52, skipping insertion in model container [2020-10-16 13:40:52,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:40:52" (3/3) ... [2020-10-16 13:40:52,388 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.opt.i [2020-10-16 13:40:52,399 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:40:52,400 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:40:52,408 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 13:40:52,409 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:40:52,438 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,439 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,439 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,439 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,440 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,440 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,441 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,441 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,441 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,441 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,442 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,442 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,442 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,443 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,443 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,443 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,444 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,444 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,444 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,445 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,445 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,445 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,446 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,446 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,450 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,450 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,451 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,451 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,458 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,458 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,458 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,459 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,465 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,465 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,465 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,465 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,468 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,468 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,468 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,469 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:40:52,471 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:40:52,485 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-16 13:40:52,506 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:40:52,506 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:40:52,507 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:40:52,507 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:40:52,507 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:40:52,507 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:40:52,507 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:40:52,507 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:40:52,522 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:40:52,523 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 81 transitions, 182 flow [2020-10-16 13:40:52,526 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 81 transitions, 182 flow [2020-10-16 13:40:52,528 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-10-16 13:40:52,577 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-10-16 13:40:52,578 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:40:52,583 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-16 13:40:52,587 INFO L117 LiptonReduction]: Number of co-enabled transitions 1822 [2020-10-16 13:40:53,906 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-10-16 13:40:54,112 INFO L132 LiptonReduction]: Checked pairs total: 3343 [2020-10-16 13:40:54,112 INFO L134 LiptonReduction]: Total number of compositions: 67 [2020-10-16 13:40:54,120 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 25 transitions, 70 flow [2020-10-16 13:40:54,170 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-10-16 13:40:54,172 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-10-16 13:40:54,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 13:40:54,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:40:54,183 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:40:54,183 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:40:54,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:40:54,189 INFO L82 PathProgramCache]: Analyzing trace with hash -2005095105, now seen corresponding path program 1 times [2020-10-16 13:40:54,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:40:54,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391566391] [2020-10-16 13:40:54,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:40:54,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:40:54,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:40:54,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391566391] [2020-10-16 13:40:54,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:40:54,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:40:54,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1346323305] [2020-10-16 13:40:54,520 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:40:54,524 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:40:54,539 INFO L258 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-16 13:40:54,540 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:40:54,544 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:40:54,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:40:54,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:40:54,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:40:54,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:40:54,562 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-10-16 13:40:54,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:40:54,618 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-10-16 13:40:54,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:40:54,620 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-16 13:40:54,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:40:54,642 INFO L225 Difference]: With dead ends: 670 [2020-10-16 13:40:54,642 INFO L226 Difference]: Without dead ends: 526 [2020-10-16 13:40:54,643 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 [2020-10-16 13:40:54,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-16 13:40:54,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-10-16 13:40:54,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-16 13:40:54,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-10-16 13:40:54,742 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-10-16 13:40:54,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:40:54,743 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-10-16 13:40:54,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:40:54,743 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-10-16 13:40:54,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 13:40:54,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:40:54,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:40:54,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:40:54,746 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:40:54,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:40:54,747 INFO L82 PathProgramCache]: Analyzing trace with hash -2027540211, now seen corresponding path program 1 times [2020-10-16 13:40:54,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:40:54,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178776237] [2020-10-16 13:40:54,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:40:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:40:54,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:40:54,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178776237] [2020-10-16 13:40:54,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:40:54,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:40:54,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1291184472] [2020-10-16 13:40:54,833 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:40:54,835 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:40:54,837 INFO L258 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-10-16 13:40:54,838 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:40:54,888 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:40:54,890 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:40:54,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:40:54,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:40:54,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:40:54,891 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-10-16 13:40:54,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:40:54,920 INFO L93 Difference]: Finished difference Result 724 states and 2331 transitions. [2020-10-16 13:40:54,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:40:54,920 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 13:40:54,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:40:54,924 INFO L225 Difference]: With dead ends: 724 [2020-10-16 13:40:54,925 INFO L226 Difference]: Without dead ends: 412 [2020-10-16 13:40:54,926 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:40:54,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-10-16 13:40:54,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2020-10-16 13:40:54,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-10-16 13:40:54,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 1323 transitions. [2020-10-16 13:40:54,951 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 1323 transitions. Word has length 11 [2020-10-16 13:40:54,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:40:54,951 INFO L481 AbstractCegarLoop]: Abstraction has 412 states and 1323 transitions. [2020-10-16 13:40:54,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:40:54,952 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 1323 transitions. [2020-10-16 13:40:54,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 13:40:54,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:40:54,954 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:40:54,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:40:54,954 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:40:54,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:40:54,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1543893440, now seen corresponding path program 1 times [2020-10-16 13:40:54,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:40:54,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577847604] [2020-10-16 13:40:54,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:40:54,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:40:54,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:40:55,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577847604] [2020-10-16 13:40:55,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:40:55,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:40:55,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1116693733] [2020-10-16 13:40:55,001 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:40:55,002 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:40:55,004 INFO L258 McrAutomatonBuilder]: Finished intersection with 15 states and 16 transitions. [2020-10-16 13:40:55,004 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:40:55,017 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:40:55,017 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:40:55,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:40:55,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:40:55,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:40:55,018 INFO L87 Difference]: Start difference. First operand 412 states and 1323 transitions. Second operand 3 states. [2020-10-16 13:40:55,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:40:55,031 INFO L93 Difference]: Finished difference Result 394 states and 1254 transitions. [2020-10-16 13:40:55,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:40:55,031 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-16 13:40:55,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:40:55,034 INFO L225 Difference]: With dead ends: 394 [2020-10-16 13:40:55,034 INFO L226 Difference]: Without dead ends: 394 [2020-10-16 13:40:55,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:40:55,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-16 13:40:55,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-16 13:40:55,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-16 13:40:55,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1254 transitions. [2020-10-16 13:40:55,066 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1254 transitions. Word has length 12 [2020-10-16 13:40:55,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:40:55,067 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1254 transitions. [2020-10-16 13:40:55,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:40:55,067 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1254 transitions. [2020-10-16 13:40:55,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 13:40:55,069 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:40:55,069 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:40:55,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:40:55,069 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:40:55,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:40:55,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1381595750, now seen corresponding path program 1 times [2020-10-16 13:40:55,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:40:55,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18107151] [2020-10-16 13:40:55,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:40:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:40:55,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:40:55,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18107151] [2020-10-16 13:40:55,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:40:55,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:40:55,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1755054500] [2020-10-16 13:40:55,115 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:40:55,116 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:40:55,119 INFO L258 McrAutomatonBuilder]: Finished intersection with 23 states and 31 transitions. [2020-10-16 13:40:55,120 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:40:55,146 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:40:55,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:40:55,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:40:55,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:40:55,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:40:55,148 INFO L87 Difference]: Start difference. First operand 394 states and 1254 transitions. Second operand 4 states. [2020-10-16 13:40:55,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:40:55,180 INFO L93 Difference]: Finished difference Result 652 states and 1957 transitions. [2020-10-16 13:40:55,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:40:55,181 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-16 13:40:55,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:40:55,184 INFO L225 Difference]: With dead ends: 652 [2020-10-16 13:40:55,184 INFO L226 Difference]: Without dead ends: 340 [2020-10-16 13:40:55,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:40:55,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-10-16 13:40:55,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 304. [2020-10-16 13:40:55,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-10-16 13:40:55,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 891 transitions. [2020-10-16 13:40:55,195 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 891 transitions. Word has length 13 [2020-10-16 13:40:55,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:40:55,196 INFO L481 AbstractCegarLoop]: Abstraction has 304 states and 891 transitions. [2020-10-16 13:40:55,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:40:55,196 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 891 transitions. [2020-10-16 13:40:55,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 13:40:55,197 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:40:55,197 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:40:55,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:40:55,198 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:40:55,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:40:55,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1391724752, now seen corresponding path program 1 times [2020-10-16 13:40:55,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:40:55,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083177360] [2020-10-16 13:40:55,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:40:55,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:40:55,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:40:55,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083177360] [2020-10-16 13:40:55,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:40:55,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:40:55,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [69315200] [2020-10-16 13:40:55,240 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:40:55,242 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:40:55,245 INFO L258 McrAutomatonBuilder]: Finished intersection with 23 states and 33 transitions. [2020-10-16 13:40:55,245 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:40:55,299 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:40:55,300 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:40:55,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:40:55,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:40:55,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:40:55,301 INFO L87 Difference]: Start difference. First operand 304 states and 891 transitions. Second operand 4 states. [2020-10-16 13:40:55,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:40:55,321 INFO L93 Difference]: Finished difference Result 406 states and 1128 transitions. [2020-10-16 13:40:55,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:40:55,322 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-16 13:40:55,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:40:55,324 INFO L225 Difference]: With dead ends: 406 [2020-10-16 13:40:55,324 INFO L226 Difference]: Without dead ends: 226 [2020-10-16 13:40:55,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:40:55,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-16 13:40:55,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-16 13:40:55,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-16 13:40:55,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 619 transitions. [2020-10-16 13:40:55,331 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 619 transitions. Word has length 13 [2020-10-16 13:40:55,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:40:55,332 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 619 transitions. [2020-10-16 13:40:55,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:40:55,332 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 619 transitions. [2020-10-16 13:40:55,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 13:40:55,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:40:55,333 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:40:55,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 13:40:55,333 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:40:55,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:40:55,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1162350155, now seen corresponding path program 1 times [2020-10-16 13:40:55,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:40:55,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756350445] [2020-10-16 13:40:55,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:40:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:40:55,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:40:55,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756350445] [2020-10-16 13:40:55,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:40:55,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:40:55,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1485720902] [2020-10-16 13:40:55,426 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:40:55,429 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:40:55,436 INFO L258 McrAutomatonBuilder]: Finished intersection with 33 states and 54 transitions. [2020-10-16 13:40:55,437 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:40:55,469 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:40:55,503 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:40:55,549 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:40:55,566 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:40:55,583 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:40:55,599 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:40:55,612 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:40:55,629 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:40:55,658 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [8106#(not (= 4 ~__unbuffered_cnt~0))] [2020-10-16 13:40:55,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:40:55,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:40:55,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:40:55,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:40:55,660 INFO L87 Difference]: Start difference. First operand 226 states and 619 transitions. Second operand 5 states. [2020-10-16 13:40:55,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:40:55,739 INFO L93 Difference]: Finished difference Result 243 states and 599 transitions. [2020-10-16 13:40:55,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:40:55,739 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-16 13:40:55,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:40:55,741 INFO L225 Difference]: With dead ends: 243 [2020-10-16 13:40:55,741 INFO L226 Difference]: Without dead ends: 162 [2020-10-16 13:40:55,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:40:55,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-16 13:40:55,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-10-16 13:40:55,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-16 13:40:55,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 369 transitions. [2020-10-16 13:40:55,746 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 369 transitions. Word has length 14 [2020-10-16 13:40:55,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:40:55,747 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 369 transitions. [2020-10-16 13:40:55,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:40:55,747 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 369 transitions. [2020-10-16 13:40:55,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 13:40:55,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:40:55,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:40:55,748 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 13:40:55,748 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:40:55,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:40:55,749 INFO L82 PathProgramCache]: Analyzing trace with hash -469082430, now seen corresponding path program 1 times [2020-10-16 13:40:55,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:40:55,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67838998] [2020-10-16 13:40:55,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:40:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:40:55,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:40:55,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67838998] [2020-10-16 13:40:55,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:40:55,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:40:55,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1825184624] [2020-10-16 13:40:55,820 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:40:55,822 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:40:55,827 INFO L258 McrAutomatonBuilder]: Finished intersection with 38 states and 62 transitions. [2020-10-16 13:40:55,828 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:40:55,836 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:40:55,853 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:40:55,870 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:40:55,958 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [8684#(<= ~__unbuffered_cnt~0 0)] [2020-10-16 13:40:55,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 13:40:55,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:40:55,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 13:40:55,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:40:55,960 INFO L87 Difference]: Start difference. First operand 162 states and 369 transitions. Second operand 7 states. [2020-10-16 13:40:56,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:40:56,022 INFO L93 Difference]: Finished difference Result 158 states and 337 transitions. [2020-10-16 13:40:56,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:40:56,024 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-16 13:40:56,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:40:56,025 INFO L225 Difference]: With dead ends: 158 [2020-10-16 13:40:56,026 INFO L226 Difference]: Without dead ends: 125 [2020-10-16 13:40:56,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 5 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:40:56,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-16 13:40:56,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-10-16 13:40:56,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-16 13:40:56,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2020-10-16 13:40:56,030 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 16 [2020-10-16 13:40:56,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:40:56,030 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2020-10-16 13:40:56,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 13:40:56,030 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2020-10-16 13:40:56,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 13:40:56,031 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:40:56,031 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:40:56,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 13:40:56,032 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:40:56,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:40:56,032 INFO L82 PathProgramCache]: Analyzing trace with hash 483879941, now seen corresponding path program 1 times [2020-10-16 13:40:56,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:40:56,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359291952] [2020-10-16 13:40:56,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:40:56,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:40:56,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:40:56,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359291952] [2020-10-16 13:40:56,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:40:56,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 13:40:56,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [417281862] [2020-10-16 13:40:56,108 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:40:56,110 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:40:56,116 INFO L258 McrAutomatonBuilder]: Finished intersection with 40 states and 58 transitions. [2020-10-16 13:40:56,116 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:40:56,122 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:40:56,170 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [9102#(<= ~__unbuffered_cnt~0 0)] [2020-10-16 13:40:56,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 13:40:56,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:40:56,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 13:40:56,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:40:56,172 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 8 states. [2020-10-16 13:40:56,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:40:56,236 INFO L93 Difference]: Finished difference Result 120 states and 253 transitions. [2020-10-16 13:40:56,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 13:40:56,236 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-10-16 13:40:56,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:40:56,237 INFO L225 Difference]: With dead ends: 120 [2020-10-16 13:40:56,237 INFO L226 Difference]: Without dead ends: 71 [2020-10-16 13:40:56,238 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-16 13:40:56,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-16 13:40:56,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-16 13:40:56,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-16 13:40:56,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-10-16 13:40:56,240 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 18 [2020-10-16 13:40:56,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:40:56,241 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-10-16 13:40:56,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 13:40:56,241 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-10-16 13:40:56,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 13:40:56,241 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:40:56,242 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:40:56,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 13:40:56,242 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:40:56,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:40:56,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1087350585, now seen corresponding path program 1 times [2020-10-16 13:40:56,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:40:56,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655057169] [2020-10-16 13:40:56,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:40:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:40:56,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:40:56,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655057169] [2020-10-16 13:40:56,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:40:56,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:40:56,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [616551197] [2020-10-16 13:40:56,278 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:40:56,280 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:40:56,288 INFO L258 McrAutomatonBuilder]: Finished intersection with 44 states and 63 transitions. [2020-10-16 13:40:56,288 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:40:56,311 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:40:56,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:40:56,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:40:56,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:40:56,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:40:56,312 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-10-16 13:40:56,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:40:56,323 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-10-16 13:40:56,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:40:56,323 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-16 13:40:56,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:40:56,323 INFO L225 Difference]: With dead ends: 70 [2020-10-16 13:40:56,324 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 13:40:56,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:40:56,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 13:40:56,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 13:40:56,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 13:40:56,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 13:40:56,325 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-10-16 13:40:56,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:40:56,325 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 13:40:56,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:40:56,326 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 13:40:56,326 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 13:40:56,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 13:40:56,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:40:56 BasicIcfg [2020-10-16 13:40:56,329 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:40:56,331 INFO L168 Benchmark]: Toolchain (without parser) took 5136.73 ms. Allocated memory was 138.4 MB in the beginning and 296.2 MB in the end (delta: 157.8 MB). Free memory was 99.7 MB in the beginning and 182.2 MB in the end (delta: -82.5 MB). Peak memory consumption was 75.3 MB. Max. memory is 7.1 GB. [2020-10-16 13:40:56,332 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:40:56,333 INFO L168 Benchmark]: CACSL2BoogieTranslator took 643.55 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 99.5 MB in the beginning and 159.6 MB in the end (delta: -60.1 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2020-10-16 13:40:56,333 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.33 ms. Allocated memory is still 202.4 MB. Free memory was 159.6 MB in the beginning and 157.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-16 13:40:56,334 INFO L168 Benchmark]: Boogie Preprocessor took 27.20 ms. Allocated memory is still 202.4 MB. Free memory was 157.5 MB in the beginning and 156.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-16 13:40:56,335 INFO L168 Benchmark]: RCFGBuilder took 460.57 ms. Allocated memory is still 202.4 MB. Free memory was 156.1 MB in the beginning and 131.3 MB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2020-10-16 13:40:56,336 INFO L168 Benchmark]: TraceAbstraction took 3949.02 ms. Allocated memory was 202.4 MB in the beginning and 296.2 MB in the end (delta: 93.8 MB). Free memory was 131.3 MB in the beginning and 182.2 MB in the end (delta: -50.9 MB). Peak memory consumption was 43.0 MB. Max. memory is 7.1 GB. [2020-10-16 13:40:56,339 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 643.55 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 99.5 MB in the beginning and 159.6 MB in the end (delta: -60.1 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.33 ms. Allocated memory is still 202.4 MB. Free memory was 159.6 MB in the beginning and 157.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.20 ms. Allocated memory is still 202.4 MB. Free memory was 157.5 MB in the beginning and 156.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 460.57 ms. Allocated memory is still 202.4 MB. Free memory was 156.1 MB in the beginning and 131.3 MB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3949.02 ms. Allocated memory was 202.4 MB in the beginning and 296.2 MB in the end (delta: 93.8 MB). Free memory was 131.3 MB in the beginning and 182.2 MB in the end (delta: -50.9 MB). Peak memory consumption was 43.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 962 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 67 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 92 PlacesBefore, 38 PlacesAfterwards, 81 TransitionsBefore, 25 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 67 TotalNumberOfCompositions, 3343 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 198 SDtfs, 194 SDslu, 315 SDs, 0 SdLazy, 169 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 86 SyntacticMatches, 10 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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, 9 MinimizatonAttempts, 36 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 4686 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...