/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/safe033_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:48:48,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:48:48,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:48:48,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:48:48,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:48:48,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:48:48,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:48:48,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:48:48,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:48:48,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:48:48,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:48:48,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:48:48,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:48:48,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:48:48,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:48:48,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:48:48,917 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:48:48,918 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:48:48,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:48:48,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:48:48,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:48:48,931 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:48:48,932 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:48:48,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:48:48,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 13:48:48,936 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 13:48:48,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 13:48:48,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 13:48:48,938 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 13:48:48,939 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 13:48:48,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:48:48,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:48:48,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:48:48,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:48:48,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:48:48,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:48:48,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:48:48,943 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:48:48,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:48:48,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:48:48,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:48:48,945 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 13:48:48,968 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:48:48,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:48:48,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:48:48,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:48:48,970 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:48:48,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:48:48,970 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:48:48,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:48:48,970 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:48:48,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:48:48,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:48:48,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:48:48,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:48:48,971 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:48:48,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:48:48,972 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:48:48,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:48:48,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:48:48,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:48:48,973 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:48:48,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:48:48,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:48:48,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:48:48,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:48:48,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:48:48,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:48:48,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:48:48,974 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:48:48,975 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:48:48,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:48:48,975 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:48:49,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:48:49,303 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:48:49,306 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:48:49,308 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:48:49,308 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:48:49,309 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i [2020-10-16 13:48:49,372 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec359b5a2/9e7e18c123c243f78cb8f95c4dd54b75/FLAG34726e5b6 [2020-10-16 13:48:49,910 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:48:49,910 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i [2020-10-16 13:48:49,927 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec359b5a2/9e7e18c123c243f78cb8f95c4dd54b75/FLAG34726e5b6 [2020-10-16 13:48:50,209 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec359b5a2/9e7e18c123c243f78cb8f95c4dd54b75 [2020-10-16 13:48:50,218 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:48:50,221 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:48:50,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:48:50,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:48:50,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:48:50,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:48:50" (1/1) ... [2020-10-16 13:48:50,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1342bb1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:50, skipping insertion in model container [2020-10-16 13:48:50,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:48:50" (1/1) ... [2020-10-16 13:48:50,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:48:50,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:48:50,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:48:50,698 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:48:50,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:48:50,947 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:48:50,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:50 WrapperNode [2020-10-16 13:48:50,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:48:50,949 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:48:50,949 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:48:50,949 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:48:50,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:50" (1/1) ... [2020-10-16 13:48:50,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:50" (1/1) ... [2020-10-16 13:48:50,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:48:50,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:48:50,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:48:50,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:48:51,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:50" (1/1) ... [2020-10-16 13:48:51,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:50" (1/1) ... [2020-10-16 13:48:51,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:50" (1/1) ... [2020-10-16 13:48:51,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:50" (1/1) ... [2020-10-16 13:48:51,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:50" (1/1) ... [2020-10-16 13:48:51,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:50" (1/1) ... [2020-10-16 13:48:51,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:50" (1/1) ... [2020-10-16 13:48:51,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:48:51,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:48:51,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:48:51,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:48:51,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:50" (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 13:48:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:48:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:48:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:48:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:48:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:48:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:48:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:48:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:48:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:48:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:48:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:48:51,106 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 13:48:51,437 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:48:51,437 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 13:48:51,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:48:51 BoogieIcfgContainer [2020-10-16 13:48:51,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:48:51,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:48:51,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:48:51,445 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:48:51,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:48:50" (1/3) ... [2020-10-16 13:48:51,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c49a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:48:51, skipping insertion in model container [2020-10-16 13:48:51,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:50" (2/3) ... [2020-10-16 13:48:51,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c49a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:48:51, skipping insertion in model container [2020-10-16 13:48:51,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:48:51" (3/3) ... [2020-10-16 13:48:51,449 INFO L111 eAbstractionObserver]: Analyzing ICFG safe033_tso.opt.i [2020-10-16 13:48:51,469 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:48:51,470 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:48:51,486 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 13:48:51,487 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:48:51,519 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:48:51,519 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:48:51,520 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:48:51,520 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:48:51,521 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:48:51,521 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:48:51,522 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:48:51,522 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:48:51,522 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:48:51,522 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:48:51,523 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:48:51,523 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:48:51,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:48:51,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:48:51,528 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:48:51,529 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:48:51,535 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:48:51,535 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:48:51,536 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:48:51,536 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:48:51,538 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:48:51,553 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-16 13:48:51,575 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:48:51,575 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:48:51,575 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:48:51,576 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:48:51,576 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:48:51,576 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:48:51,576 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:48:51,576 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:48:51,590 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:48:51,591 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 55 transitions, 120 flow [2020-10-16 13:48:51,593 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 55 transitions, 120 flow [2020-10-16 13:48:51,595 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 60 places, 55 transitions, 120 flow [2020-10-16 13:48:51,635 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2020-10-16 13:48:51,636 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:48:51,640 INFO L80 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 53 events. 2/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-10-16 13:48:51,643 INFO L117 LiptonReduction]: Number of co-enabled transitions 672 [2020-10-16 13:48:52,801 INFO L132 LiptonReduction]: Checked pairs total: 1233 [2020-10-16 13:48:52,802 INFO L134 LiptonReduction]: Total number of compositions: 49 [2020-10-16 13:48:52,809 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-10-16 13:48:52,823 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-10-16 13:48:52,825 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-16 13:48:52,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-16 13:48:52,832 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:48:52,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-16 13:48:52,833 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:48:52,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:48:52,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1785955775, now seen corresponding path program 1 times [2020-10-16 13:48:52,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:48:52,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697682611] [2020-10-16 13:48:52,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:48:53,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:48:53,143 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 13:48:53,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697682611] [2020-10-16 13:48:53,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:48:53,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:48:53,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [134327385] [2020-10-16 13:48:53,149 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:48:53,157 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:48:53,174 INFO L258 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-10-16 13:48:53,175 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:48:53,178 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:48:53,178 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:48:53,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:48:53,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:48:53,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:48:53,192 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-10-16 13:48:53,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:48:53,215 INFO L93 Difference]: Finished difference Result 72 states and 154 transitions. [2020-10-16 13:48:53,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:48:53,217 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-16 13:48:53,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:48:53,227 INFO L225 Difference]: With dead ends: 72 [2020-10-16 13:48:53,227 INFO L226 Difference]: Without dead ends: 56 [2020-10-16 13:48:53,229 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 13:48:53,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-16 13:48:53,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-16 13:48:53,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-16 13:48:53,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 114 transitions. [2020-10-16 13:48:53,274 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 114 transitions. Word has length 6 [2020-10-16 13:48:53,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:48:53,274 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 114 transitions. [2020-10-16 13:48:53,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:48:53,275 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 114 transitions. [2020-10-16 13:48:53,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-16 13:48:53,289 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:48:53,289 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:48:53,290 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:48:53,290 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:48:53,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:48:53,290 INFO L82 PathProgramCache]: Analyzing trace with hash -469946389, now seen corresponding path program 1 times [2020-10-16 13:48:53,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:48:53,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110337685] [2020-10-16 13:48:53,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:48:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:48:53,473 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 13:48:53,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110337685] [2020-10-16 13:48:53,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:48:53,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:48:53,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1564172681] [2020-10-16 13:48:53,474 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:48:53,475 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:48:53,478 INFO L258 McrAutomatonBuilder]: Finished intersection with 11 states and 13 transitions. [2020-10-16 13:48:53,478 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:48:53,513 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:48:53,548 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [402#(not (= 2 ~__unbuffered_cnt~0))] [2020-10-16 13:48:53,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:48:53,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:48:53,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:48:53,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:48:53,551 INFO L87 Difference]: Start difference. First operand 56 states and 114 transitions. Second operand 5 states. [2020-10-16 13:48:53,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:48:53,613 INFO L93 Difference]: Finished difference Result 44 states and 81 transitions. [2020-10-16 13:48:53,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:48:53,614 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-10-16 13:48:53,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:48:53,615 INFO L225 Difference]: With dead ends: 44 [2020-10-16 13:48:53,615 INFO L226 Difference]: Without dead ends: 28 [2020-10-16 13:48:53,616 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:48:53,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-16 13:48:53,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-16 13:48:53,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-16 13:48:53,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 42 transitions. [2020-10-16 13:48:53,620 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 42 transitions. Word has length 7 [2020-10-16 13:48:53,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:48:53,621 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 42 transitions. [2020-10-16 13:48:53,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:48:53,621 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2020-10-16 13:48:53,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 13:48:53,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:48:53,622 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:48:53,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:48:53,622 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:48:53,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:48:53,623 INFO L82 PathProgramCache]: Analyzing trace with hash 967414389, now seen corresponding path program 1 times [2020-10-16 13:48:53,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:48:53,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124496273] [2020-10-16 13:48:53,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:48:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:48:53,675 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 13:48:53,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124496273] [2020-10-16 13:48:53,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:48:53,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:48:53,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1721793824] [2020-10-16 13:48:53,677 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:48:53,679 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:48:53,683 INFO L258 McrAutomatonBuilder]: Finished intersection with 17 states and 20 transitions. [2020-10-16 13:48:53,684 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:48:53,685 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:48:53,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:48:53,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:48:53,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:48:53,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:48:53,686 INFO L87 Difference]: Start difference. First operand 28 states and 42 transitions. Second operand 3 states. [2020-10-16 13:48:53,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:48:53,694 INFO L93 Difference]: Finished difference Result 35 states and 50 transitions. [2020-10-16 13:48:53,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:48:53,695 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-16 13:48:53,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:48:53,696 INFO L225 Difference]: With dead ends: 35 [2020-10-16 13:48:53,696 INFO L226 Difference]: Without dead ends: 16 [2020-10-16 13:48:53,696 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 [2020-10-16 13:48:53,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-16 13:48:53,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-16 13:48:53,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-16 13:48:53,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2020-10-16 13:48:53,699 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 12 [2020-10-16 13:48:53,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:48:53,699 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2020-10-16 13:48:53,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:48:53,700 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-10-16 13:48:53,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 13:48:53,700 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:48:53,700 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:48:53,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:48:53,701 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:48:53,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:48:53,701 INFO L82 PathProgramCache]: Analyzing trace with hash -129480839, now seen corresponding path program 2 times [2020-10-16 13:48:53,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:48:53,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499060413] [2020-10-16 13:48:53,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:48:53,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:48:53,742 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 13:48:53,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499060413] [2020-10-16 13:48:53,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:48:53,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:48:53,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [773003421] [2020-10-16 13:48:53,743 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:48:53,745 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:48:53,747 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 24 transitions. [2020-10-16 13:48:53,747 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:48:53,754 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:48:53,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:48:53,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:48:53,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:48:53,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:48:53,755 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 4 states. [2020-10-16 13:48:53,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:48:53,766 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2020-10-16 13:48:53,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:48:53,767 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 13:48:53,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:48:53,767 INFO L225 Difference]: With dead ends: 15 [2020-10-16 13:48:53,767 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 13:48:53,768 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 13:48:53,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 13:48:53,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 13:48:53,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 13:48:53,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 13:48:53,769 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-16 13:48:53,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:48:53,769 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 13:48:53,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:48:53,769 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 13:48:53,770 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 13:48:53,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:48:53,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:48:53 BasicIcfg [2020-10-16 13:48:53,774 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:48:53,777 INFO L168 Benchmark]: Toolchain (without parser) took 3555.65 ms. Allocated memory was 139.5 MB in the beginning and 250.1 MB in the end (delta: 110.6 MB). Free memory was 101.6 MB in the beginning and 180.3 MB in the end (delta: -78.7 MB). Peak memory consumption was 31.9 MB. Max. memory is 7.1 GB. [2020-10-16 13:48:53,777 INFO L168 Benchmark]: CDTParser took 0.17 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). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:48:53,778 INFO L168 Benchmark]: CACSL2BoogieTranslator took 727.00 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 101.2 MB in the beginning and 161.9 MB in the end (delta: -60.8 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2020-10-16 13:48:53,779 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.22 ms. Allocated memory is still 202.9 MB. Free memory was 161.9 MB in the beginning and 159.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 13:48:53,780 INFO L168 Benchmark]: Boogie Preprocessor took 35.02 ms. Allocated memory is still 202.9 MB. Free memory was 159.9 MB in the beginning and 158.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 13:48:53,781 INFO L168 Benchmark]: RCFGBuilder took 410.34 ms. Allocated memory is still 202.9 MB. Free memory was 158.6 MB in the beginning and 138.3 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2020-10-16 13:48:53,782 INFO L168 Benchmark]: TraceAbstraction took 2332.01 ms. Allocated memory was 202.9 MB in the beginning and 250.1 MB in the end (delta: 47.2 MB). Free memory was 138.3 MB in the beginning and 180.3 MB in the end (delta: -42.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-10-16 13:48:53,786 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 727.00 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 101.2 MB in the beginning and 161.9 MB in the end (delta: -60.8 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.22 ms. Allocated memory is still 202.9 MB. Free memory was 161.9 MB in the beginning and 159.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.02 ms. Allocated memory is still 202.9 MB. Free memory was 159.9 MB in the beginning and 158.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 410.34 ms. Allocated memory is still 202.9 MB. Free memory was 158.6 MB in the beginning and 138.3 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2332.01 ms. Allocated memory was 202.9 MB in the beginning and 250.1 MB in the end (delta: 47.2 MB). Free memory was 138.3 MB in the beginning and 180.3 MB in the end (delta: -42.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 365 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 25 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.2s, 60 PlacesBefore, 22 PlacesAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 5 FixpointIterations, 12 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 49 TotalNumberOfCompositions, 1233 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 3 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 51 SDtfs, 23 SDslu, 45 SDs, 0 SdLazy, 31 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 667 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...