/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 02:14:19,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 02:14:19,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 02:14:19,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 02:14:19,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 02:14:19,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 02:14:19,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 02:14:19,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 02:14:19,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 02:14:19,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 02:14:19,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 02:14:19,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 02:14:19,930 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 02:14:19,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 02:14:19,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 02:14:19,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 02:14:19,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 02:14:19,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 02:14:19,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 02:14:19,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 02:14:19,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 02:14:19,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 02:14:19,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 02:14:19,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 02:14:19,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 02:14:19,958 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 02:14:19,959 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 02:14:19,960 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 02:14:19,961 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 02:14:19,962 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 02:14:19,962 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 02:14:19,963 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 02:14:19,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 02:14:19,965 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 02:14:19,966 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 02:14:19,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 02:14:19,967 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 02:14:19,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 02:14:19,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 02:14:19,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 02:14:19,969 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 02:14:19,970 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf [2020-04-18 02:14:20,007 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 02:14:20,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 02:14:20,009 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 02:14:20,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 02:14:20,011 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 02:14:20,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 02:14:20,012 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 02:14:20,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 02:14:20,012 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 02:14:20,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 02:14:20,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 02:14:20,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 02:14:20,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 02:14:20,013 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 02:14:20,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 02:14:20,013 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 02:14:20,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 02:14:20,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 02:14:20,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 02:14:20,014 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 02:14:20,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 02:14:20,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 02:14:20,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 02:14:20,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 02:14:20,015 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 02:14:20,015 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 02:14:20,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 02:14:20,016 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 02:14:20,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 02:14:20,016 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 02:14:20,273 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 02:14:20,292 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 02:14:20,296 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 02:14:20,298 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 02:14:20,298 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 02:14:20,299 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i [2020-04-18 02:14:20,369 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cc9fa687/69a78b5f0fdb4089adcd4fa7131c4ec7/FLAGb66d05d0e [2020-04-18 02:14:20,875 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 02:14:20,876 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i [2020-04-18 02:14:20,889 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cc9fa687/69a78b5f0fdb4089adcd4fa7131c4ec7/FLAGb66d05d0e [2020-04-18 02:14:21,189 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cc9fa687/69a78b5f0fdb4089adcd4fa7131c4ec7 [2020-04-18 02:14:21,199 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 02:14:21,221 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 02:14:21,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 02:14:21,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 02:14:21,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 02:14:21,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:14:21" (1/1) ... [2020-04-18 02:14:21,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e2eba81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:14:21, skipping insertion in model container [2020-04-18 02:14:21,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:14:21" (1/1) ... [2020-04-18 02:14:21,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 02:14:21,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 02:14:21,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:14:21,810 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 02:14:21,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:14:21,938 INFO L208 MainTranslator]: Completed translation [2020-04-18 02:14:21,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:14:21 WrapperNode [2020-04-18 02:14:21,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 02:14:21,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 02:14:21,939 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 02:14:21,940 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 02:14:21,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:14:21" (1/1) ... [2020-04-18 02:14:21,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:14:21" (1/1) ... [2020-04-18 02:14:21,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 02:14:21,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 02:14:21,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 02:14:21,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 02:14:22,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:14:21" (1/1) ... [2020-04-18 02:14:22,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:14:21" (1/1) ... [2020-04-18 02:14:22,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:14:21" (1/1) ... [2020-04-18 02:14:22,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:14:21" (1/1) ... [2020-04-18 02:14:22,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:14:21" (1/1) ... [2020-04-18 02:14:22,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:14:21" (1/1) ... [2020-04-18 02:14:22,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:14:21" (1/1) ... [2020-04-18 02:14:22,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 02:14:22,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 02:14:22,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 02:14:22,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 02:14:22,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:14:21" (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 [2020-04-18 02:14:22,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 02:14:22,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 02:14:22,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 02:14:22,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 02:14:22,091 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 02:14:22,092 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 02:14:22,092 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 02:14:22,092 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 02:14:22,092 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 02:14:22,092 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 02:14:22,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 02:14:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 02:14:22,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 02:14:22,094 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 02:14:22,466 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 02:14:22,467 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 02:14:22,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:14:22 BoogieIcfgContainer [2020-04-18 02:14:22,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 02:14:22,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 02:14:22,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 02:14:22,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 02:14:22,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 02:14:21" (1/3) ... [2020-04-18 02:14:22,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1a0143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:14:22, skipping insertion in model container [2020-04-18 02:14:22,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:14:21" (2/3) ... [2020-04-18 02:14:22,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1a0143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:14:22, skipping insertion in model container [2020-04-18 02:14:22,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:14:22" (3/3) ... [2020-04-18 02:14:22,479 INFO L109 eAbstractionObserver]: Analyzing ICFG safe009_tso.oepc.i [2020-04-18 02:14:22,488 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 02:14:22,488 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 02:14:22,495 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 02:14:22,496 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 02:14:22,524 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,524 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,525 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,525 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,526 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,526 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,527 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,527 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,527 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,527 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,528 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,528 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,528 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,529 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,529 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,529 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,530 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,530 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,534 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,534 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,535 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,535 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,541 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,541 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,542 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,542 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,544 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,544 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,545 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,545 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:14:22,559 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 02:14:22,577 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 02:14:22,577 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 02:14:22,577 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 02:14:22,577 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 02:14:22,578 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 02:14:22,578 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 02:14:22,578 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 02:14:22,578 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 02:14:22,593 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-04-18 02:14:22,595 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-04-18 02:14:22,632 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-04-18 02:14:22,632 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:14:22,637 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-04-18 02:14:22,640 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-04-18 02:14:22,659 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-04-18 02:14:22,660 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:14:22,660 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-04-18 02:14:22,662 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1186 [2020-04-18 02:14:22,663 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 02:14:23,828 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-04-18 02:14:24,102 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2020-04-18 02:14:24,136 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1951 [2020-04-18 02:14:24,136 INFO L214 etLargeBlockEncoding]: Total number of compositions: 54 [2020-04-18 02:14:24,140 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-04-18 02:14:24,162 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 234 states. [2020-04-18 02:14:24,164 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states. [2020-04-18 02:14:24,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 02:14:24,171 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:14:24,172 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:14:24,173 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:14:24,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:14:24,178 INFO L82 PathProgramCache]: Analyzing trace with hash 364476878, now seen corresponding path program 1 times [2020-04-18 02:14:24,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:14:24,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809763437] [2020-04-18 02:14:24,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:14:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:14:24,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:14:24,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809763437] [2020-04-18 02:14:24,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:14:24,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 02:14:24,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546321942] [2020-04-18 02:14:24,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 02:14:24,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:14:24,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 02:14:24,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:14:24,408 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 3 states. [2020-04-18 02:14:24,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:14:24,445 INFO L93 Difference]: Finished difference Result 222 states and 615 transitions. [2020-04-18 02:14:24,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 02:14:24,447 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-04-18 02:14:24,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:14:24,462 INFO L225 Difference]: With dead ends: 222 [2020-04-18 02:14:24,462 INFO L226 Difference]: Without dead ends: 174 [2020-04-18 02:14:24,463 INFO L678 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 [2020-04-18 02:14:24,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-04-18 02:14:24,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2020-04-18 02:14:24,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-04-18 02:14:24,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 463 transitions. [2020-04-18 02:14:24,533 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 463 transitions. Word has length 8 [2020-04-18 02:14:24,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:14:24,534 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 463 transitions. [2020-04-18 02:14:24,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 02:14:24,535 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 463 transitions. [2020-04-18 02:14:24,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 02:14:24,536 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:14:24,536 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:14:24,536 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:14:24,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:14:24,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1586119381, now seen corresponding path program 1 times [2020-04-18 02:14:24,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:14:24,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323139411] [2020-04-18 02:14:24,538 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:14:24,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:14:24,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:14:24,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323139411] [2020-04-18 02:14:24,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:14:24,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:14:24,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342489359] [2020-04-18 02:14:24,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:14:24,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:14:24,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:14:24,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:14:24,648 INFO L87 Difference]: Start difference. First operand 174 states and 463 transitions. Second operand 4 states. [2020-04-18 02:14:24,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:14:24,676 INFO L93 Difference]: Finished difference Result 204 states and 513 transitions. [2020-04-18 02:14:24,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 02:14:24,676 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-04-18 02:14:24,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:14:24,678 INFO L225 Difference]: With dead ends: 204 [2020-04-18 02:14:24,679 INFO L226 Difference]: Without dead ends: 108 [2020-04-18 02:14:24,679 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:14:24,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-04-18 02:14:24,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-04-18 02:14:24,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-04-18 02:14:24,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 253 transitions. [2020-04-18 02:14:24,692 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 253 transitions. Word has length 9 [2020-04-18 02:14:24,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:14:24,692 INFO L479 AbstractCegarLoop]: Abstraction has 108 states and 253 transitions. [2020-04-18 02:14:24,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:14:24,692 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 253 transitions. [2020-04-18 02:14:24,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 02:14:24,694 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:14:24,694 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:14:24,694 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:14:24,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:14:24,694 INFO L82 PathProgramCache]: Analyzing trace with hash 409264718, now seen corresponding path program 1 times [2020-04-18 02:14:24,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:14:24,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943170588] [2020-04-18 02:14:24,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:14:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:14:24,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:14:24,751 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943170588] [2020-04-18 02:14:24,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:14:24,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:14:24,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041743052] [2020-04-18 02:14:24,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:14:24,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:14:24,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:14:24,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:14:24,753 INFO L87 Difference]: Start difference. First operand 108 states and 253 transitions. Second operand 4 states. [2020-04-18 02:14:24,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:14:24,777 INFO L93 Difference]: Finished difference Result 138 states and 314 transitions. [2020-04-18 02:14:24,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 02:14:24,778 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-04-18 02:14:24,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:14:24,779 INFO L225 Difference]: With dead ends: 138 [2020-04-18 02:14:24,779 INFO L226 Difference]: Without dead ends: 60 [2020-04-18 02:14:24,780 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:14:24,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-04-18 02:14:24,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-04-18 02:14:24,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-04-18 02:14:24,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 129 transitions. [2020-04-18 02:14:24,786 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 129 transitions. Word has length 11 [2020-04-18 02:14:24,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:14:24,787 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 129 transitions. [2020-04-18 02:14:24,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:14:24,787 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 129 transitions. [2020-04-18 02:14:24,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 02:14:24,788 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:14:24,788 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:14:24,788 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:14:24,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:14:24,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1143893480, now seen corresponding path program 1 times [2020-04-18 02:14:24,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:14:24,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999560541] [2020-04-18 02:14:24,790 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:14:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:14:24,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:14:24,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999560541] [2020-04-18 02:14:24,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:14:24,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:14:24,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880178566] [2020-04-18 02:14:24,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:14:24,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:14:24,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:14:24,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:14:24,913 INFO L87 Difference]: Start difference. First operand 60 states and 129 transitions. Second operand 4 states. [2020-04-18 02:14:24,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:14:24,948 INFO L93 Difference]: Finished difference Result 73 states and 142 transitions. [2020-04-18 02:14:24,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:14:24,949 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-18 02:14:24,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:14:24,950 INFO L225 Difference]: With dead ends: 73 [2020-04-18 02:14:24,950 INFO L226 Difference]: Without dead ends: 52 [2020-04-18 02:14:24,951 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:14:24,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-04-18 02:14:24,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-04-18 02:14:24,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-04-18 02:14:24,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 101 transitions. [2020-04-18 02:14:24,962 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 101 transitions. Word has length 12 [2020-04-18 02:14:24,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:14:24,963 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 101 transitions. [2020-04-18 02:14:24,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:14:24,963 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 101 transitions. [2020-04-18 02:14:24,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 02:14:24,966 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:14:24,966 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:14:24,966 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:14:24,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:14:24,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1190230917, now seen corresponding path program 1 times [2020-04-18 02:14:24,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:14:24,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788718248] [2020-04-18 02:14:24,967 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:14:24,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:14:25,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:14:25,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788718248] [2020-04-18 02:14:25,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:14:25,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:14:25,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221492663] [2020-04-18 02:14:25,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:14:25,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:14:25,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:14:25,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:14:25,044 INFO L87 Difference]: Start difference. First operand 52 states and 101 transitions. Second operand 5 states. [2020-04-18 02:14:25,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:14:25,091 INFO L93 Difference]: Finished difference Result 53 states and 91 transitions. [2020-04-18 02:14:25,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 02:14:25,092 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-04-18 02:14:25,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:14:25,093 INFO L225 Difference]: With dead ends: 53 [2020-04-18 02:14:25,093 INFO L226 Difference]: Without dead ends: 38 [2020-04-18 02:14:25,094 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-18 02:14:25,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-04-18 02:14:25,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-04-18 02:14:25,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-04-18 02:14:25,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2020-04-18 02:14:25,098 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 61 transitions. Word has length 13 [2020-04-18 02:14:25,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:14:25,098 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 61 transitions. [2020-04-18 02:14:25,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:14:25,098 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2020-04-18 02:14:25,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 02:14:25,099 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:14:25,099 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:14:25,099 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:14:25,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:14:25,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1757733921, now seen corresponding path program 1 times [2020-04-18 02:14:25,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:14:25,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300099055] [2020-04-18 02:14:25,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:14:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:14:25,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:14:25,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300099055] [2020-04-18 02:14:25,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:14:25,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 02:14:25,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151526426] [2020-04-18 02:14:25,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 02:14:25,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:14:25,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 02:14:25,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-18 02:14:25,185 INFO L87 Difference]: Start difference. First operand 38 states and 61 transitions. Second operand 6 states. [2020-04-18 02:14:25,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:14:25,245 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2020-04-18 02:14:25,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 02:14:25,245 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-04-18 02:14:25,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:14:25,245 INFO L225 Difference]: With dead ends: 35 [2020-04-18 02:14:25,246 INFO L226 Difference]: Without dead ends: 29 [2020-04-18 02:14:25,246 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-04-18 02:14:25,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-04-18 02:14:25,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-04-18 02:14:25,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-04-18 02:14:25,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2020-04-18 02:14:25,248 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 43 transitions. Word has length 14 [2020-04-18 02:14:25,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:14:25,249 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 43 transitions. [2020-04-18 02:14:25,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 02:14:25,249 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-04-18 02:14:25,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-18 02:14:25,250 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:14:25,250 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:14:25,251 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:14:25,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:14:25,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1250665313, now seen corresponding path program 1 times [2020-04-18 02:14:25,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:14:25,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322123790] [2020-04-18 02:14:25,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:14:25,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:14:25,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:14:25,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322123790] [2020-04-18 02:14:25,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:14:25,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:14:25,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200464628] [2020-04-18 02:14:25,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 02:14:25,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:14:25,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 02:14:25,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:14:25,279 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand 3 states. [2020-04-18 02:14:25,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:14:25,284 INFO L93 Difference]: Finished difference Result 28 states and 42 transitions. [2020-04-18 02:14:25,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 02:14:25,284 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-04-18 02:14:25,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:14:25,285 INFO L225 Difference]: With dead ends: 28 [2020-04-18 02:14:25,285 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 02:14:25,285 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:14:25,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 02:14:25,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 02:14:25,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 02:14:25,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 02:14:25,286 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-04-18 02:14:25,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:14:25,287 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 02:14:25,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 02:14:25,287 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 02:14:25,287 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 02:14:25,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 02:14:25 BasicIcfg [2020-04-18 02:14:25,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 02:14:25,293 INFO L168 Benchmark]: Toolchain (without parser) took 4092.62 ms. Allocated memory was 140.5 MB in the beginning and 248.0 MB in the end (delta: 107.5 MB). Free memory was 100.9 MB in the beginning and 98.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 109.4 MB. Max. memory is 7.1 GB. [2020-04-18 02:14:25,294 INFO L168 Benchmark]: CDTParser took 1.31 ms. Allocated memory is still 140.5 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-04-18 02:14:25,295 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.94 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 99.0 MB in the beginning and 157.0 MB in the end (delta: -58.0 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2020-04-18 02:14:25,295 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.58 ms. Allocated memory is still 202.4 MB. Free memory was 157.0 MB in the beginning and 154.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-18 02:14:25,296 INFO L168 Benchmark]: Boogie Preprocessor took 26.01 ms. Allocated memory is still 202.4 MB. Free memory was 154.9 MB in the beginning and 153.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 02:14:25,297 INFO L168 Benchmark]: RCFGBuilder took 450.28 ms. Allocated memory is still 202.4 MB. Free memory was 153.5 MB in the beginning and 131.7 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-04-18 02:14:25,298 INFO L168 Benchmark]: TraceAbstraction took 2819.29 ms. Allocated memory was 202.4 MB in the beginning and 248.0 MB in the end (delta: 45.6 MB). Free memory was 131.0 MB in the beginning and 98.9 MB in the end (delta: 32.1 MB). Peak memory consumption was 77.7 MB. Max. memory is 7.1 GB. [2020-04-18 02:14:25,302 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.31 ms. Allocated memory is still 140.5 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 716.94 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 99.0 MB in the beginning and 157.0 MB in the end (delta: -58.0 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.58 ms. Allocated memory is still 202.4 MB. Free memory was 157.0 MB in the beginning and 154.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.01 ms. Allocated memory is still 202.4 MB. Free memory was 154.9 MB in the beginning and 153.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 450.28 ms. Allocated memory is still 202.4 MB. Free memory was 153.5 MB in the beginning and 131.7 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2819.29 ms. Allocated memory was 202.4 MB in the beginning and 248.0 MB in the end (delta: 45.6 MB). Free memory was 131.0 MB in the beginning and 98.9 MB in the end (delta: 32.1 MB). Peak memory consumption was 77.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 76 ProgramPointsBefore, 30 ProgramPointsAfterwards, 68 TransitionsBefore, 20 TransitionsAfterwards, 1186 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 606 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1951 CheckedPairsTotal, 54 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 110 SDtfs, 103 SDslu, 124 SDs, 0 SdLazy, 97 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 2456 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...