/usr/bin/java -Xmx16000000000 -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/concurrent/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 18:34:08,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 18:34:08,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 18:34:08,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 18:34:08,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 18:34:08,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 18:34:08,918 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 18:34:08,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 18:34:08,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 18:34:08,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 18:34:08,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 18:34:08,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 18:34:08,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 18:34:08,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 18:34:08,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 18:34:08,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 18:34:08,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 18:34:08,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 18:34:08,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 18:34:08,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 18:34:08,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 18:34:08,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 18:34:08,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 18:34:08,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 18:34:08,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 18:34:08,941 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 18:34:08,941 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 18:34:08,942 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 18:34:08,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 18:34:08,944 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 18:34:08,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 18:34:08,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 18:34:08,945 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 18:34:08,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 18:34:08,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 18:34:08,948 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 18:34:08,948 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 18:34:08,948 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 18:34:08,949 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 18:34:08,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 18:34:08,950 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 18:34:08,951 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-11 18:34:08,973 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 18:34:08,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 18:34:08,974 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 18:34:08,975 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 18:34:08,975 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 18:34:08,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 18:34:08,975 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 18:34:08,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 18:34:08,976 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 18:34:08,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 18:34:08,976 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 18:34:08,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 18:34:08,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 18:34:08,977 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 18:34:08,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 18:34:08,977 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 18:34:08,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 18:34:08,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 18:34:08,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 18:34:08,978 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 18:34:08,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 18:34:08,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 18:34:08,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 18:34:08,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 18:34:08,979 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 18:34:08,979 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 18:34:08,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 18:34:08,979 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 18:34:08,979 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 18:34:08,980 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 18:34:09,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 18:34:09,296 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 18:34:09,299 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 18:34:09,301 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 18:34:09,302 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 18:34:09,302 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i [2020-10-11 18:34:09,375 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e62cc2bd5/85a6d62460a04354a5c66ed791fa4238/FLAG45335beac [2020-10-11 18:34:09,934 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 18:34:09,935 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i [2020-10-11 18:34:09,953 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e62cc2bd5/85a6d62460a04354a5c66ed791fa4238/FLAG45335beac [2020-10-11 18:34:10,295 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e62cc2bd5/85a6d62460a04354a5c66ed791fa4238 [2020-10-11 18:34:10,303 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 18:34:10,305 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 18:34:10,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 18:34:10,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 18:34:10,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 18:34:10,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:34:10" (1/1) ... [2020-10-11 18:34:10,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@687cd8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:34:10, skipping insertion in model container [2020-10-11 18:34:10,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:34:10" (1/1) ... [2020-10-11 18:34:10,322 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 18:34:10,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 18:34:10,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:34:10,876 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 18:34:11,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:34:11,080 INFO L208 MainTranslator]: Completed translation [2020-10-11 18:34:11,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:34:11 WrapperNode [2020-10-11 18:34:11,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 18:34:11,082 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 18:34:11,082 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 18:34:11,082 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 18:34:11,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:34:11" (1/1) ... [2020-10-11 18:34:11,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:34:11" (1/1) ... [2020-10-11 18:34:11,129 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 18:34:11,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 18:34:11,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 18:34:11,130 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 18:34:11,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:34:11" (1/1) ... [2020-10-11 18:34:11,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:34:11" (1/1) ... [2020-10-11 18:34:11,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:34:11" (1/1) ... [2020-10-11 18:34:11,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:34:11" (1/1) ... [2020-10-11 18:34:11,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:34:11" (1/1) ... [2020-10-11 18:34:11,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:34:11" (1/1) ... [2020-10-11 18:34:11,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:34:11" (1/1) ... [2020-10-11 18:34:11,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 18:34:11,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 18:34:11,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 18:34:11,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 18:34:11,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:34:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 18:34:11,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 18:34:11,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 18:34:11,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 18:34:11,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 18:34:11,236 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 18:34:11,237 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 18:34:11,237 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 18:34:11,237 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 18:34:11,237 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 18:34:11,237 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 18:34:11,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 18:34:11,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 18:34:11,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 18:34:11,244 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 18:34:11,607 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 18:34:11,608 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 18:34:11,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:34:11 BoogieIcfgContainer [2020-10-11 18:34:11,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 18:34:11,611 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 18:34:11,612 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 18:34:11,615 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 18:34:11,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 06:34:10" (1/3) ... [2020-10-11 18:34:11,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ab516a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:34:11, skipping insertion in model container [2020-10-11 18:34:11,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:34:11" (2/3) ... [2020-10-11 18:34:11,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ab516a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:34:11, skipping insertion in model container [2020-10-11 18:34:11,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:34:11" (3/3) ... [2020-10-11 18:34:11,619 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_tso.opt.i [2020-10-11 18:34:11,630 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 18:34:11,637 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 18:34:11,638 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 18:34:11,666 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,666 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,666 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,667 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,668 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,668 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,668 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,669 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,669 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,669 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,669 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,670 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,670 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,670 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,671 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,671 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,671 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,671 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,675 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,675 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,676 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,676 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,685 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,685 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,686 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,686 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,689 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,689 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,689 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,689 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:34:11,708 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-11 18:34:11,731 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 18:34:11,731 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 18:34:11,731 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 18:34:11,731 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 18:34:11,731 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 18:34:11,732 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 18:34:11,732 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 18:34:11,732 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 18:34:11,747 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-10-11 18:34:11,792 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-10-11 18:34:11,793 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:34:11,798 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-11 18:34:11,798 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 71 transitions, 157 flow [2020-10-11 18:34:11,804 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 57 transitions, 123 flow [2020-10-11 18:34:11,834 INFO L129 PetriNetUnfolder]: 1/56 cut-off events. [2020-10-11 18:34:11,834 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:34:11,834 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:34:11,838 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:34:11,839 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:34:11,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:34:11,847 INFO L82 PathProgramCache]: Analyzing trace with hash 642340523, now seen corresponding path program 1 times [2020-10-11 18:34:11,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:34:11,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458475943] [2020-10-11 18:34:11,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:34:12,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:34:12,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:34:12,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458475943] [2020-10-11 18:34:12,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:34:12,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:34:12,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492038891] [2020-10-11 18:34:12,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:34:12,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:34:12,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:34:12,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:34:12,657 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 71 [2020-10-11 18:34:12,659 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 57 transitions, 123 flow. Second operand 6 states. [2020-10-11 18:34:12,659 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:34:12,659 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 71 [2020-10-11 18:34:12,661 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:34:12,811 INFO L129 PetriNetUnfolder]: 3/71 cut-off events. [2020-10-11 18:34:12,811 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:34:12,812 INFO L80 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 71 events. 3/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 96 event pairs, 0 based on Foata normal form. 4/74 useless extension candidates. Maximal degree in co-relation 75. Up to 7 conditions per place. [2020-10-11 18:34:12,814 INFO L132 encePairwiseOnDemand]: 64/71 looper letters, 6 selfloop transitions, 2 changer transitions 11/66 dead transitions. [2020-10-11 18:34:12,814 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 66 transitions, 177 flow [2020-10-11 18:34:12,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:34:12,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:34:12,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 571 transitions. [2020-10-11 18:34:12,834 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8935837245696401 [2020-10-11 18:34:12,835 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 571 transitions. [2020-10-11 18:34:12,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 571 transitions. [2020-10-11 18:34:12,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:34:12,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 571 transitions. [2020-10-11 18:34:12,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:34:12,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:34:12,865 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:34:12,868 INFO L185 Difference]: Start difference. First operand has 66 places, 57 transitions, 123 flow. Second operand 9 states and 571 transitions. [2020-10-11 18:34:12,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 66 transitions, 177 flow [2020-10-11 18:34:12,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 66 transitions, 174 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-11 18:34:12,886 INFO L241 Difference]: Finished difference. Result has 78 places, 55 transitions, 136 flow [2020-10-11 18:34:12,890 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=136, PETRI_PLACES=78, PETRI_TRANSITIONS=55} [2020-10-11 18:34:12,891 INFO L341 CegarLoopForPetriNet]: 66 programPoint places, 12 predicate places. [2020-10-11 18:34:12,892 INFO L481 AbstractCegarLoop]: Abstraction has has 78 places, 55 transitions, 136 flow [2020-10-11 18:34:12,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:34:12,892 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:34:12,892 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:34:12,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 18:34:12,893 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:34:12,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:34:12,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1426036756, now seen corresponding path program 1 times [2020-10-11 18:34:12,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:34:12,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793794056] [2020-10-11 18:34:12,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:34:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:34:13,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:34:13,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793794056] [2020-10-11 18:34:13,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:34:13,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:34:13,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450282523] [2020-10-11 18:34:13,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:34:13,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:34:13,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:34:13,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:34:13,230 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 71 [2020-10-11 18:34:13,230 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 55 transitions, 136 flow. Second operand 6 states. [2020-10-11 18:34:13,230 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:34:13,231 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 71 [2020-10-11 18:34:13,231 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:34:13,375 INFO L129 PetriNetUnfolder]: 3/78 cut-off events. [2020-10-11 18:34:13,376 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-11 18:34:13,378 INFO L80 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 78 events. 3/78 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 117 event pairs, 0 based on Foata normal form. 2/80 useless extension candidates. Maximal degree in co-relation 117. Up to 7 conditions per place. [2020-10-11 18:34:13,378 INFO L132 encePairwiseOnDemand]: 65/71 looper letters, 6 selfloop transitions, 2 changer transitions 10/65 dead transitions. [2020-10-11 18:34:13,379 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 65 transitions, 210 flow [2020-10-11 18:34:13,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:34:13,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:34:13,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 569 transitions. [2020-10-11 18:34:13,384 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8904538341158059 [2020-10-11 18:34:13,384 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 569 transitions. [2020-10-11 18:34:13,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 569 transitions. [2020-10-11 18:34:13,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:34:13,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 569 transitions. [2020-10-11 18:34:13,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:34:13,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:34:13,391 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:34:13,391 INFO L185 Difference]: Start difference. First operand has 78 places, 55 transitions, 136 flow. Second operand 9 states and 569 transitions. [2020-10-11 18:34:13,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 65 transitions, 210 flow [2020-10-11 18:34:13,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 65 transitions, 178 flow, removed 14 selfloop flow, removed 8 redundant places. [2020-10-11 18:34:13,397 INFO L241 Difference]: Finished difference. Result has 78 places, 55 transitions, 140 flow [2020-10-11 18:34:13,398 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=140, PETRI_PLACES=78, PETRI_TRANSITIONS=55} [2020-10-11 18:34:13,399 INFO L341 CegarLoopForPetriNet]: 66 programPoint places, 12 predicate places. [2020-10-11 18:34:13,399 INFO L481 AbstractCegarLoop]: Abstraction has has 78 places, 55 transitions, 140 flow [2020-10-11 18:34:13,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:34:13,399 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:34:13,400 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:34:13,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 18:34:13,400 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:34:13,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:34:13,401 INFO L82 PathProgramCache]: Analyzing trace with hash 25753773, now seen corresponding path program 1 times [2020-10-11 18:34:13,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:34:13,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030440900] [2020-10-11 18:34:13,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:34:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:34:13,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:34:13,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030440900] [2020-10-11 18:34:13,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:34:13,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:34:13,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981712000] [2020-10-11 18:34:13,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:34:13,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:34:13,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:34:13,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:34:13,863 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 71 [2020-10-11 18:34:13,863 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 55 transitions, 140 flow. Second operand 7 states. [2020-10-11 18:34:13,864 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:34:13,864 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 71 [2020-10-11 18:34:13,864 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:34:14,007 INFO L129 PetriNetUnfolder]: 4/76 cut-off events. [2020-10-11 18:34:14,007 INFO L130 PetriNetUnfolder]: For 20/27 co-relation queries the response was YES. [2020-10-11 18:34:14,008 INFO L80 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 76 events. 4/76 cut-off events. For 20/27 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 130 event pairs, 0 based on Foata normal form. 2/78 useless extension candidates. Maximal degree in co-relation 126. Up to 7 conditions per place. [2020-10-11 18:34:14,009 INFO L132 encePairwiseOnDemand]: 63/71 looper letters, 6 selfloop transitions, 4 changer transitions 12/67 dead transitions. [2020-10-11 18:34:14,009 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 67 transitions, 233 flow [2020-10-11 18:34:14,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 18:34:14,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 18:34:14,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 614 transitions. [2020-10-11 18:34:14,012 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8647887323943662 [2020-10-11 18:34:14,012 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 614 transitions. [2020-10-11 18:34:14,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 614 transitions. [2020-10-11 18:34:14,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:34:14,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 614 transitions. [2020-10-11 18:34:14,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 18:34:14,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 18:34:14,017 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 18:34:14,017 INFO L185 Difference]: Start difference. First operand has 78 places, 55 transitions, 140 flow. Second operand 10 states and 614 transitions. [2020-10-11 18:34:14,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 67 transitions, 233 flow [2020-10-11 18:34:14,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 67 transitions, 201 flow, removed 14 selfloop flow, removed 8 redundant places. [2020-10-11 18:34:14,021 INFO L241 Difference]: Finished difference. Result has 81 places, 55 transitions, 154 flow [2020-10-11 18:34:14,021 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=154, PETRI_PLACES=81, PETRI_TRANSITIONS=55} [2020-10-11 18:34:14,021 INFO L341 CegarLoopForPetriNet]: 66 programPoint places, 15 predicate places. [2020-10-11 18:34:14,022 INFO L481 AbstractCegarLoop]: Abstraction has has 81 places, 55 transitions, 154 flow [2020-10-11 18:34:14,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:34:14,022 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:34:14,022 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:34:14,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 18:34:14,023 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:34:14,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:34:14,023 INFO L82 PathProgramCache]: Analyzing trace with hash -193987713, now seen corresponding path program 1 times [2020-10-11 18:34:14,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:34:14,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623058764] [2020-10-11 18:34:14,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:34:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:34:14,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:34:14,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623058764] [2020-10-11 18:34:14,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:34:14,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:34:14,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047164585] [2020-10-11 18:34:14,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:34:14,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:34:14,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:34:14,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:34:14,372 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 71 [2020-10-11 18:34:14,373 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 55 transitions, 154 flow. Second operand 7 states. [2020-10-11 18:34:14,373 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:34:14,374 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 71 [2020-10-11 18:34:14,374 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:34:14,553 INFO L129 PetriNetUnfolder]: 4/81 cut-off events. [2020-10-11 18:34:14,553 INFO L130 PetriNetUnfolder]: For 46/59 co-relation queries the response was YES. [2020-10-11 18:34:14,553 INFO L80 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 81 events. 4/81 cut-off events. For 46/59 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 159 event pairs, 0 based on Foata normal form. 3/83 useless extension candidates. Maximal degree in co-relation 147. Up to 7 conditions per place. [2020-10-11 18:34:14,554 INFO L132 encePairwiseOnDemand]: 63/71 looper letters, 6 selfloop transitions, 4 changer transitions 12/67 dead transitions. [2020-10-11 18:34:14,554 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 67 transitions, 255 flow [2020-10-11 18:34:14,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 18:34:14,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 18:34:14,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 614 transitions. [2020-10-11 18:34:14,558 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8647887323943662 [2020-10-11 18:34:14,558 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 614 transitions. [2020-10-11 18:34:14,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 614 transitions. [2020-10-11 18:34:14,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:34:14,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 614 transitions. [2020-10-11 18:34:14,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 18:34:14,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 18:34:14,563 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 18:34:14,564 INFO L185 Difference]: Start difference. First operand has 81 places, 55 transitions, 154 flow. Second operand 10 states and 614 transitions. [2020-10-11 18:34:14,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 67 transitions, 255 flow [2020-10-11 18:34:14,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 67 transitions, 205 flow, removed 20 selfloop flow, removed 10 redundant places. [2020-10-11 18:34:14,574 INFO L241 Difference]: Finished difference. Result has 82 places, 55 transitions, 158 flow [2020-10-11 18:34:14,574 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=158, PETRI_PLACES=82, PETRI_TRANSITIONS=55} [2020-10-11 18:34:14,582 INFO L341 CegarLoopForPetriNet]: 66 programPoint places, 16 predicate places. [2020-10-11 18:34:14,582 INFO L481 AbstractCegarLoop]: Abstraction has has 82 places, 55 transitions, 158 flow [2020-10-11 18:34:14,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:34:14,582 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:34:14,582 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:34:14,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 18:34:14,583 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:34:14,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:34:14,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1916680376, now seen corresponding path program 1 times [2020-10-11 18:34:14,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:34:14,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612977222] [2020-10-11 18:34:14,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:34:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:34:14,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:34:14,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612977222] [2020-10-11 18:34:14,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:34:14,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:34:14,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540146361] [2020-10-11 18:34:14,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:34:14,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:34:14,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:34:14,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:34:14,877 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 71 [2020-10-11 18:34:14,878 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 55 transitions, 158 flow. Second operand 7 states. [2020-10-11 18:34:14,878 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:34:14,878 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 71 [2020-10-11 18:34:14,879 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:34:15,032 INFO L129 PetriNetUnfolder]: 4/64 cut-off events. [2020-10-11 18:34:15,032 INFO L130 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2020-10-11 18:34:15,033 INFO L80 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 64 events. 4/64 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 2/66 useless extension candidates. Maximal degree in co-relation 114. Up to 5 conditions per place. [2020-10-11 18:34:15,034 INFO L132 encePairwiseOnDemand]: 64/71 looper letters, 0 selfloop transitions, 0 changer transitions 60/60 dead transitions. [2020-10-11 18:34:15,034 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 60 transitions, 212 flow [2020-10-11 18:34:15,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 18:34:15,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 18:34:15,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 608 transitions. [2020-10-11 18:34:15,038 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.856338028169014 [2020-10-11 18:34:15,038 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 608 transitions. [2020-10-11 18:34:15,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 608 transitions. [2020-10-11 18:34:15,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:34:15,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 608 transitions. [2020-10-11 18:34:15,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 18:34:15,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 18:34:15,042 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 18:34:15,042 INFO L185 Difference]: Start difference. First operand has 82 places, 55 transitions, 158 flow. Second operand 10 states and 608 transitions. [2020-10-11 18:34:15,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 60 transitions, 212 flow [2020-10-11 18:34:15,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 60 transitions, 178 flow, removed 12 selfloop flow, removed 8 redundant places. [2020-10-11 18:34:15,045 INFO L241 Difference]: Finished difference. Result has 75 places, 0 transitions, 0 flow [2020-10-11 18:34:15,045 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=75, PETRI_TRANSITIONS=0} [2020-10-11 18:34:15,045 INFO L341 CegarLoopForPetriNet]: 66 programPoint places, 9 predicate places. [2020-10-11 18:34:15,046 INFO L481 AbstractCegarLoop]: Abstraction has has 75 places, 0 transitions, 0 flow [2020-10-11 18:34:15,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:34:15,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 18:34:15,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 06:34:15 BasicIcfg [2020-10-11 18:34:15,052 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 18:34:15,055 INFO L168 Benchmark]: Toolchain (without parser) took 4748.99 ms. Allocated memory was 248.5 MB in the beginning and 426.2 MB in the end (delta: 177.7 MB). Free memory was 203.8 MB in the beginning and 349.8 MB in the end (delta: -145.9 MB). Peak memory consumption was 31.8 MB. Max. memory is 14.2 GB. [2020-10-11 18:34:15,056 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 248.5 MB. Free memory is still 224.9 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 18:34:15,057 INFO L168 Benchmark]: CACSL2BoogieTranslator took 775.11 ms. Allocated memory was 248.5 MB in the beginning and 356.5 MB in the end (delta: 108.0 MB). Free memory was 203.8 MB in the beginning and 317.2 MB in the end (delta: -113.3 MB). Peak memory consumption was 23.9 MB. Max. memory is 14.2 GB. [2020-10-11 18:34:15,057 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.31 ms. Allocated memory is still 356.5 MB. Free memory is still 317.2 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 18:34:15,058 INFO L168 Benchmark]: Boogie Preprocessor took 27.74 ms. Allocated memory is still 356.5 MB. Free memory was 317.2 MB in the beginning and 313.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 14.2 GB. [2020-10-11 18:34:15,059 INFO L168 Benchmark]: RCFGBuilder took 452.98 ms. Allocated memory is still 356.5 MB. Free memory was 313.4 MB in the beginning and 291.8 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 14.2 GB. [2020-10-11 18:34:15,060 INFO L168 Benchmark]: TraceAbstraction took 3440.81 ms. Allocated memory was 356.5 MB in the beginning and 426.2 MB in the end (delta: 69.7 MB). Free memory was 291.8 MB in the beginning and 349.8 MB in the end (delta: -58.0 MB). Peak memory consumption was 11.7 MB. Max. memory is 14.2 GB. [2020-10-11 18:34:15,064 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 248.5 MB. Free memory is still 224.9 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 775.11 ms. Allocated memory was 248.5 MB in the beginning and 356.5 MB in the end (delta: 108.0 MB). Free memory was 203.8 MB in the beginning and 317.2 MB in the end (delta: -113.3 MB). Peak memory consumption was 23.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 47.31 ms. Allocated memory is still 356.5 MB. Free memory is still 317.2 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Preprocessor took 27.74 ms. Allocated memory is still 356.5 MB. Free memory was 317.2 MB in the beginning and 313.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 452.98 ms. Allocated memory is still 356.5 MB. Free memory was 313.4 MB in the beginning and 291.8 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3440.81 ms. Allocated memory was 356.5 MB in the beginning and 426.2 MB in the end (delta: 69.7 MB). Free memory was 291.8 MB in the beginning and 349.8 MB in the end (delta: -58.0 MB). Peak memory consumption was 11.7 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 134 SDtfs, 136 SDslu, 383 SDs, 0 SdLazy, 312 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 199 ConstructedInterpolants, 0 QuantifiedInterpolants, 25083 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...