/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 15:35:38,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 15:35:38,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 15:35:38,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 15:35:38,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 15:35:38,413 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 15:35:38,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 15:35:38,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 15:35:38,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 15:35:38,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 15:35:38,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 15:35:38,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 15:35:38,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 15:35:38,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 15:35:38,443 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 15:35:38,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 15:35:38,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 15:35:38,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 15:35:38,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 15:35:38,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 15:35:38,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 15:35:38,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 15:35:38,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 15:35:38,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 15:35:38,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 15:35:38,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 15:35:38,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 15:35:38,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 15:35:38,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 15:35:38,525 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 15:35:38,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 15:35:38,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 15:35:38,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 15:35:38,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 15:35:38,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 15:35:38,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 15:35:38,531 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-11-09 15:35:38,590 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 15:35:38,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 15:35:38,594 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 15:35:38,594 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 15:35:38,594 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 15:35:38,595 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 15:35:38,595 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 15:35:38,595 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 15:35:38,595 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 15:35:38,596 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 15:35:38,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 15:35:38,597 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 15:35:38,597 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 15:35:38,597 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 15:35:38,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 15:35:38,598 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 15:35:38,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 15:35:38,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 15:35:38,599 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 15:35:38,599 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 15:35:38,599 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 15:35:38,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:35:38,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 15:35:38,600 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 15:35:38,600 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 15:35:38,600 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 15:35:38,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 15:35:38,601 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 15:35:38,601 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 15:35:38,601 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 15:35:38,601 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 15:35:38,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 15:35:39,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 15:35:39,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 15:35:39,043 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 15:35:39,043 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 15:35:39,044 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2020-11-09 15:35:39,139 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45da08eaf/9566040d22014161920fbf69f7e8c0df/FLAG05e787f03 [2020-11-09 15:35:39,801 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 15:35:39,802 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2020-11-09 15:35:39,822 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45da08eaf/9566040d22014161920fbf69f7e8c0df/FLAG05e787f03 [2020-11-09 15:35:40,079 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45da08eaf/9566040d22014161920fbf69f7e8c0df [2020-11-09 15:35:40,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 15:35:40,094 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 15:35:40,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 15:35:40,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 15:35:40,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 15:35:40,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:35:40" (1/1) ... [2020-11-09 15:35:40,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b609cf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:35:40, skipping insertion in model container [2020-11-09 15:35:40,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:35:40" (1/1) ... [2020-11-09 15:35:40,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 15:35:40,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 15:35:40,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:35:40,535 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 15:35:40,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:35:40,762 INFO L208 MainTranslator]: Completed translation [2020-11-09 15:35:40,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:35:40 WrapperNode [2020-11-09 15:35:40,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 15:35:40,764 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 15:35:40,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 15:35:40,764 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 15:35:40,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:35:40" (1/1) ... [2020-11-09 15:35:40,789 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:35:40" (1/1) ... [2020-11-09 15:35:40,811 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 15:35:40,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 15:35:40,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 15:35:40,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 15:35:40,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:35:40" (1/1) ... [2020-11-09 15:35:40,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:35:40" (1/1) ... [2020-11-09 15:35:40,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:35:40" (1/1) ... [2020-11-09 15:35:40,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:35:40" (1/1) ... [2020-11-09 15:35:40,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:35:40" (1/1) ... [2020-11-09 15:35:40,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:35:40" (1/1) ... [2020-11-09 15:35:40,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:35:40" (1/1) ... [2020-11-09 15:35:40,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 15:35:40,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 15:35:40,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 15:35:40,840 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 15:35:40,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:35:40" (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 [2020-11-09 15:35:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 15:35:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 15:35:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 15:35:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 15:35:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 15:35:40,928 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 15:35:40,929 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 15:35:40,929 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 15:35:40,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 15:35:40,931 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 15:35:40,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 15:35:40,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 15:35:40,933 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 15:35:41,316 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 15:35:41,316 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 15:35:41,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:35:41 BoogieIcfgContainer [2020-11-09 15:35:41,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 15:35:41,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 15:35:41,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 15:35:41,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 15:35:41,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:35:40" (1/3) ... [2020-11-09 15:35:41,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@779f0a5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:35:41, skipping insertion in model container [2020-11-09 15:35:41,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:35:40" (2/3) ... [2020-11-09 15:35:41,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@779f0a5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:35:41, skipping insertion in model container [2020-11-09 15:35:41,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:35:41" (3/3) ... [2020-11-09 15:35:41,328 INFO L111 eAbstractionObserver]: Analyzing ICFG safe010_tso.oepc.i [2020-11-09 15:35:41,344 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 15:35:41,344 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 15:35:41,348 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 15:35:41,348 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 15:35:41,378 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,379 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,379 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,380 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,380 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,380 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,381 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,381 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,381 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,381 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,382 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,382 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,382 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,382 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,382 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,382 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,383 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,383 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,383 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,384 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,384 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,384 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,386 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,387 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,387 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,387 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,394 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,394 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,395 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,395 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:35:41,397 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 15:35:41,411 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-09 15:35:41,435 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 15:35:41,435 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 15:35:41,435 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 15:35:41,436 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 15:35:41,436 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 15:35:41,436 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 15:35:41,436 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 15:35:41,436 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 15:35:41,461 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 15:35:41,461 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 64 transitions, 138 flow [2020-11-09 15:35:41,465 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 64 transitions, 138 flow [2020-11-09 15:35:41,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 64 transitions, 138 flow [2020-11-09 15:35:41,520 INFO L129 PetriNetUnfolder]: 3/62 cut-off events. [2020-11-09 15:35:41,522 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 15:35:41,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 62 events. 3/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-11-09 15:35:41,535 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-11-09 15:35:43,158 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-11-09 15:35:43,313 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-11-09 15:35:44,442 WARN L194 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-11-09 15:35:44,767 WARN L194 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-11-09 15:35:44,893 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-11-09 15:35:45,081 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-11-09 15:35:45,166 INFO L131 LiptonReduction]: Checked pairs total: 1636 [2020-11-09 15:35:45,167 INFO L133 LiptonReduction]: Total number of compositions: 67 [2020-11-09 15:35:45,173 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-11-09 15:35:45,183 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-11-09 15:35:45,185 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-11-09 15:35:45,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-09 15:35:45,191 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:35:45,191 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-09 15:35:45,192 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:35:45,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:35:45,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1312316534, now seen corresponding path program 1 times [2020-11-09 15:35:45,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:35:45,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008252832] [2020-11-09 15:35:45,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:35:45,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:35:45,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:35:45,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008252832] [2020-11-09 15:35:45,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:35:45,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:35:45,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [35573050] [2020-11-09 15:35:45,441 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:35:45,445 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:35:45,459 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-11-09 15:35:45,460 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:35:45,465 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:35:45,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:35:45,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:35:45,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:35:45,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:35:45,486 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-11-09 15:35:45,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:35:45,515 INFO L93 Difference]: Finished difference Result 70 states and 149 transitions. [2020-11-09 15:35:45,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:35:45,518 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-09 15:35:45,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:35:45,528 INFO L225 Difference]: With dead ends: 70 [2020-11-09 15:35:45,528 INFO L226 Difference]: Without dead ends: 54 [2020-11-09 15:35:45,529 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:35:45,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-09 15:35:45,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-09 15:35:45,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-09 15:35:45,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 109 transitions. [2020-11-09 15:35:45,577 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 109 transitions. Word has length 6 [2020-11-09 15:35:45,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:35:45,578 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 109 transitions. [2020-11-09 15:35:45,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:35:45,578 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 109 transitions. [2020-11-09 15:35:45,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-09 15:35:45,579 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:35:45,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:35:45,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 15:35:45,580 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:35:45,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:35:45,580 INFO L82 PathProgramCache]: Analyzing trace with hash -2027108383, now seen corresponding path program 1 times [2020-11-09 15:35:45,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:35:45,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747245739] [2020-11-09 15:35:45,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:35:45,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:35:45,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:35:45,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747245739] [2020-11-09 15:35:45,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:35:45,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:35:45,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [699317364] [2020-11-09 15:35:45,654 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:35:45,655 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:35:45,657 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 9 transitions. [2020-11-09 15:35:45,658 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:35:45,668 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:35:45,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:35:45,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:35:45,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:35:45,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:35:45,671 INFO L87 Difference]: Start difference. First operand 54 states and 109 transitions. Second operand 4 states. [2020-11-09 15:35:45,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:35:45,695 INFO L93 Difference]: Finished difference Result 60 states and 113 transitions. [2020-11-09 15:35:45,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:35:45,695 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-09 15:35:45,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:35:45,696 INFO L225 Difference]: With dead ends: 60 [2020-11-09 15:35:45,696 INFO L226 Difference]: Without dead ends: 36 [2020-11-09 15:35:45,697 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:35:45,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-09 15:35:45,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-09 15:35:45,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-09 15:35:45,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2020-11-09 15:35:45,704 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 7 [2020-11-09 15:35:45,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:35:45,704 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2020-11-09 15:35:45,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:35:45,704 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-11-09 15:35:45,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 15:35:45,705 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:35:45,705 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:35:45,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 15:35:45,705 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:35:45,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:35:45,706 INFO L82 PathProgramCache]: Analyzing trace with hash -953134969, now seen corresponding path program 1 times [2020-11-09 15:35:45,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:35:45,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90756216] [2020-11-09 15:35:45,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:35:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:35:45,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:35:45,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90756216] [2020-11-09 15:35:45,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:35:45,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:35:45,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [156681925] [2020-11-09 15:35:45,844 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:35:45,846 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:35:45,855 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 23 transitions. [2020-11-09 15:35:45,856 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:35:45,905 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:35:45,955 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:35:45,995 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:35:46,027 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [542#(not (= 2 ~__unbuffered_cnt~0))] [2020-11-09 15:35:46,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:35:46,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:35:46,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:35:46,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:35:46,029 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand 5 states. [2020-11-09 15:35:46,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:35:46,081 INFO L93 Difference]: Finished difference Result 32 states and 51 transitions. [2020-11-09 15:35:46,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:35:46,082 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-09 15:35:46,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:35:46,083 INFO L225 Difference]: With dead ends: 32 [2020-11-09 15:35:46,083 INFO L226 Difference]: Without dead ends: 22 [2020-11-09 15:35:46,083 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:35:46,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-09 15:35:46,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-09 15:35:46,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-09 15:35:46,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2020-11-09 15:35:46,087 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 9 [2020-11-09 15:35:46,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:35:46,087 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-11-09 15:35:46,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:35:46,087 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-11-09 15:35:46,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 15:35:46,088 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:35:46,088 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:35:46,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 15:35:46,089 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:35:46,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:35:46,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1480685439, now seen corresponding path program 1 times [2020-11-09 15:35:46,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:35:46,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076162462] [2020-11-09 15:35:46,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:35:46,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:35:46,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:35:46,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076162462] [2020-11-09 15:35:46,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:35:46,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:35:46,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1190401609] [2020-11-09 15:35:46,133 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:35:46,134 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:35:46,136 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-11-09 15:35:46,137 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:35:46,141 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:35:46,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:35:46,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:35:46,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:35:46,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:35:46,143 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand 3 states. [2020-11-09 15:35:46,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:35:46,148 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2020-11-09 15:35:46,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:35:46,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-09 15:35:46,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:35:46,149 INFO L225 Difference]: With dead ends: 21 [2020-11-09 15:35:46,149 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 15:35:46,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:35:46,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 15:35:46,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 15:35:46,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 15:35:46,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 15:35:46,151 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-11-09 15:35:46,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:35:46,151 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 15:35:46,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:35:46,151 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 15:35:46,151 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 15:35:46,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 15:35:46,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:35:46 BasicIcfg [2020-11-09 15:35:46,155 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 15:35:46,157 INFO L168 Benchmark]: Toolchain (without parser) took 6068.08 ms. Allocated memory was 151.0 MB in the beginning and 182.5 MB in the end (delta: 31.5 MB). Free memory was 131.2 MB in the beginning and 72.8 MB in the end (delta: 58.4 MB). Peak memory consumption was 89.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:35:46,157 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 123.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:35:46,158 INFO L168 Benchmark]: CACSL2BoogieTranslator took 666.86 ms. Allocated memory is still 151.0 MB. Free memory was 130.6 MB in the beginning and 115.5 MB in the end (delta: 15.1 MB). Peak memory consumption was 16.7 MB. Max. memory is 8.0 GB. [2020-11-09 15:35:46,159 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.17 ms. Allocated memory is still 151.0 MB. Free memory was 115.5 MB in the beginning and 113.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:35:46,160 INFO L168 Benchmark]: Boogie Preprocessor took 27.32 ms. Allocated memory is still 151.0 MB. Free memory was 113.7 MB in the beginning and 112.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:35:46,161 INFO L168 Benchmark]: RCFGBuilder took 479.15 ms. Allocated memory is still 151.0 MB. Free memory was 112.4 MB in the beginning and 92.7 MB in the end (delta: 19.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2020-11-09 15:35:46,161 INFO L168 Benchmark]: TraceAbstraction took 4834.80 ms. Allocated memory was 151.0 MB in the beginning and 182.5 MB in the end (delta: 31.5 MB). Free memory was 92.2 MB in the beginning and 72.8 MB in the end (delta: 19.4 MB). Peak memory consumption was 51.4 MB. Max. memory is 8.0 GB. [2020-11-09 15:35:46,165 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 123.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 666.86 ms. Allocated memory is still 151.0 MB. Free memory was 130.6 MB in the beginning and 115.5 MB in the end (delta: 15.1 MB). Peak memory consumption was 16.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 47.17 ms. Allocated memory is still 151.0 MB. Free memory was 115.5 MB in the beginning and 113.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.32 ms. Allocated memory is still 151.0 MB. Free memory was 113.7 MB in the beginning and 112.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 479.15 ms. Allocated memory is still 151.0 MB. Free memory was 112.4 MB in the beginning and 92.7 MB in the end (delta: 19.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4834.80 ms. Allocated memory was 151.0 MB in the beginning and 182.5 MB in the end (delta: 31.5 MB). Free memory was 92.2 MB in the beginning and 72.8 MB in the end (delta: 19.4 MB). Peak memory consumption was 51.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 444 VarBasedMoverChecksPositive, 22 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 20 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.7s, 68 PlacesBefore, 22 PlacesAfterwards, 64 TransitionsBefore, 15 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 6 FixpointIterations, 16 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 3 ChoiceCompositions, 67 TotalNumberOfCompositions, 1636 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 48 SDtfs, 29 SDslu, 39 SDs, 0 SdLazy, 30 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 658 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...