/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-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:04:07,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:04:07,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:04:07,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:04:07,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:04:07,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:04:07,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:04:07,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:04:07,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:04:07,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:04:07,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:04:07,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:04:07,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:04:07,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:04:07,448 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:04:07,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:04:07,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:04:07,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:04:07,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:04:07,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:04:07,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:04:07,460 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:04:07,461 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:04:07,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:04:07,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 17:04:07,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 17:04:07,477 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 17:04:07,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 17:04:07,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 17:04:07,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 17:04:07,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:04:07,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:04:07,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:04:07,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:04:07,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:04:07,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:04:07,486 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:04:07,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:04:07,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:04:07,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:04:07,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:04:07,490 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-SP.epf [2020-11-09 17:04:07,517 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:04:07,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:04:07,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:04:07,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:04:07,519 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:04:07,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:04:07,520 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:04:07,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:04:07,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:04:07,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:04:07,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:04:07,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:04:07,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:04:07,521 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:04:07,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:04:07,522 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:04:07,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:04:07,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:04:07,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:04:07,523 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:04:07,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:04:07,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:04:07,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:04:07,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:04:07,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:04:07,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:04:07,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:04:07,524 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:04:07,525 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:04:07,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:04:07,525 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:04:07,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:04:07,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:04:07,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:04:07,996 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:04:07,996 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:04:07,997 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.opt.i [2020-11-09 17:04:08,083 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a45cf1e09/b5e1f15a03494ae6986bba190619113b/FLAG45286729c [2020-11-09 17:04:08,819 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:04:08,819 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.opt.i [2020-11-09 17:04:08,840 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a45cf1e09/b5e1f15a03494ae6986bba190619113b/FLAG45286729c [2020-11-09 17:04:09,065 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a45cf1e09/b5e1f15a03494ae6986bba190619113b [2020-11-09 17:04:09,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:04:09,079 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:04:09,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:04:09,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:04:09,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:04:09,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:04:09" (1/1) ... [2020-11-09 17:04:09,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67e4ba27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:09, skipping insertion in model container [2020-11-09 17:04:09,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:04:09" (1/1) ... [2020-11-09 17:04:09,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:04:09,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:04:09,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:04:09,574 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:04:09,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:04:09,870 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:04:09,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:09 WrapperNode [2020-11-09 17:04:09,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:04:09,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:04:09,873 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:04:09,873 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:04:09,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:09" (1/1) ... [2020-11-09 17:04:09,899 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:09" (1/1) ... [2020-11-09 17:04:09,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:04:09,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:04:09,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:04:09,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:04:09,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:09" (1/1) ... [2020-11-09 17:04:09,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:09" (1/1) ... [2020-11-09 17:04:09,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:09" (1/1) ... [2020-11-09 17:04:09,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:09" (1/1) ... [2020-11-09 17:04:09,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:09" (1/1) ... [2020-11-09 17:04:09,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:09" (1/1) ... [2020-11-09 17:04:09,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:09" (1/1) ... [2020-11-09 17:04:09,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:04:09,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:04:09,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:04:09,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:04:09,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:09" (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 17:04:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:04:10,050 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 17:04:10,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:04:10,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:04:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 17:04:10,052 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 17:04:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 17:04:10,053 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 17:04:10,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:04:10,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 17:04:10,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:04:10,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:04:10,058 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 17:04:10,578 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:04:10,578 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 17:04:10,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:04:10 BoogieIcfgContainer [2020-11-09 17:04:10,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:04:10,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:04:10,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:04:10,589 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:04:10,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:04:09" (1/3) ... [2020-11-09 17:04:10,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518d48b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:04:10, skipping insertion in model container [2020-11-09 17:04:10,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:09" (2/3) ... [2020-11-09 17:04:10,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518d48b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:04:10, skipping insertion in model container [2020-11-09 17:04:10,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:04:10" (3/3) ... [2020-11-09 17:04:10,594 INFO L111 eAbstractionObserver]: Analyzing ICFG safe010_tso.opt.i [2020-11-09 17:04:10,611 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:04:10,611 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:04:10,615 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:04:10,617 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:04:10,661 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,662 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,662 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,662 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,663 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,663 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,663 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,663 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,665 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,665 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,666 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,666 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,666 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,667 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,667 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,667 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,668 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,668 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,668 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,669 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,669 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,669 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,670 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,670 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,673 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,674 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,674 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,675 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,685 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,686 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,689 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,689 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:10,694 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:04:10,707 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-09 17:04:10,742 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:04:10,742 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:04:10,743 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:04:10,743 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:04:10,744 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:04:10,744 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:04:10,744 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:04:10,744 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:04:10,761 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:04:10,762 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 64 transitions, 138 flow [2020-11-09 17:04:10,765 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 64 transitions, 138 flow [2020-11-09 17:04:10,767 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 64 transitions, 138 flow [2020-11-09 17:04:10,838 INFO L129 PetriNetUnfolder]: 3/62 cut-off events. [2020-11-09 17:04:10,838 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 17:04:10,844 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 17:04:10,849 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-11-09 17:04:11,378 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-11-09 17:04:14,192 WARN L194 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-11-09 17:04:14,299 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-11-09 17:04:14,503 WARN L194 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-11-09 17:04:14,849 INFO L131 LiptonReduction]: Checked pairs total: 1636 [2020-11-09 17:04:14,850 INFO L133 LiptonReduction]: Total number of compositions: 67 [2020-11-09 17:04:14,860 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-11-09 17:04:14,871 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-11-09 17:04:14,872 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-11-09 17:04:14,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-09 17:04:14,877 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:04:14,878 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-09 17:04:14,879 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:04:14,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:04:14,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1312316534, now seen corresponding path program 1 times [2020-11-09 17:04:14,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:04:14,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646563045] [2020-11-09 17:04:14,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:04:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:04:15,103 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 17:04:15,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646563045] [2020-11-09 17:04:15,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:04:15,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 17:04:15,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [318740186] [2020-11-09 17:04:15,107 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:04:15,110 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:04:15,124 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-11-09 17:04:15,124 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:04:15,130 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:04:15,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:04:15,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:04:15,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:04:15,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:04:15,149 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-11-09 17:04:15,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:04:15,174 INFO L93 Difference]: Finished difference Result 70 states and 149 transitions. [2020-11-09 17:04:15,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:04:15,176 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-09 17:04:15,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:04:15,186 INFO L225 Difference]: With dead ends: 70 [2020-11-09 17:04:15,186 INFO L226 Difference]: Without dead ends: 54 [2020-11-09 17:04:15,188 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 17:04:15,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-09 17:04:15,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-09 17:04:15,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-09 17:04:15,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 109 transitions. [2020-11-09 17:04:15,234 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 109 transitions. Word has length 6 [2020-11-09 17:04:15,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:04:15,235 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 109 transitions. [2020-11-09 17:04:15,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:04:15,235 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 109 transitions. [2020-11-09 17:04:15,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-09 17:04:15,236 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:04:15,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:04:15,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:04:15,237 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:04:15,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:04:15,238 INFO L82 PathProgramCache]: Analyzing trace with hash -2027108383, now seen corresponding path program 1 times [2020-11-09 17:04:15,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:04:15,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136529627] [2020-11-09 17:04:15,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:04:15,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:04:15,349 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 17:04:15,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136529627] [2020-11-09 17:04:15,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:04:15,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:04:15,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [982406328] [2020-11-09 17:04:15,350 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:04:15,352 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:04:15,357 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 9 transitions. [2020-11-09 17:04:15,357 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:04:15,375 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:04:15,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:04:15,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:04:15,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:04:15,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:04:15,379 INFO L87 Difference]: Start difference. First operand 54 states and 109 transitions. Second operand 4 states. [2020-11-09 17:04:15,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:04:15,406 INFO L93 Difference]: Finished difference Result 60 states and 113 transitions. [2020-11-09 17:04:15,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:04:15,406 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-09 17:04:15,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:04:15,407 INFO L225 Difference]: With dead ends: 60 [2020-11-09 17:04:15,407 INFO L226 Difference]: Without dead ends: 36 [2020-11-09 17:04:15,408 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 17:04:15,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-09 17:04:15,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-09 17:04:15,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-09 17:04:15,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2020-11-09 17:04:15,415 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 7 [2020-11-09 17:04:15,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:04:15,415 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2020-11-09 17:04:15,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:04:15,415 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-11-09 17:04:15,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 17:04:15,416 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:04:15,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:04:15,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:04:15,416 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:04:15,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:04:15,417 INFO L82 PathProgramCache]: Analyzing trace with hash -953134969, now seen corresponding path program 1 times [2020-11-09 17:04:15,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:04:15,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194261798] [2020-11-09 17:04:15,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:04:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:04:15,572 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 17:04:15,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194261798] [2020-11-09 17:04:15,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:04:15,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:04:15,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [735703458] [2020-11-09 17:04:15,573 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:04:15,574 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:04:15,576 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 23 transitions. [2020-11-09 17:04:15,576 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:04:15,603 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:04:15,640 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:04:15,666 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:04:15,700 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [542#(not (= 2 ~__unbuffered_cnt~0))] [2020-11-09 17:04:15,701 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:04:15,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:04:15,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:04:15,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:04:15,702 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand 5 states. [2020-11-09 17:04:15,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:04:15,771 INFO L93 Difference]: Finished difference Result 32 states and 51 transitions. [2020-11-09 17:04:15,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:04:15,771 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-09 17:04:15,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:04:15,772 INFO L225 Difference]: With dead ends: 32 [2020-11-09 17:04:15,773 INFO L226 Difference]: Without dead ends: 22 [2020-11-09 17:04:15,773 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 17:04:15,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-09 17:04:15,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-09 17:04:15,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-09 17:04:15,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2020-11-09 17:04:15,777 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 9 [2020-11-09 17:04:15,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:04:15,778 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-11-09 17:04:15,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:04:15,778 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-11-09 17:04:15,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 17:04:15,778 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:04:15,779 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:04:15,779 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:04:15,779 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:04:15,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:04:15,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1480685439, now seen corresponding path program 1 times [2020-11-09 17:04:15,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:04:15,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421232481] [2020-11-09 17:04:15,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:04:15,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:04:15,847 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 17:04:15,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421232481] [2020-11-09 17:04:15,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:04:15,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:04:15,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1183344258] [2020-11-09 17:04:15,849 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:04:15,851 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:04:15,853 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-11-09 17:04:15,853 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:04:15,858 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:04:15,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:04:15,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:04:15,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:04:15,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:04:15,860 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand 3 states. [2020-11-09 17:04:15,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:04:15,866 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2020-11-09 17:04:15,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:04:15,867 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-09 17:04:15,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:04:15,867 INFO L225 Difference]: With dead ends: 21 [2020-11-09 17:04:15,867 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 17:04:15,868 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 17:04:15,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 17:04:15,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 17:04:15,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 17:04:15,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 17:04:15,869 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-11-09 17:04:15,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:04:15,869 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 17:04:15,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:04:15,869 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 17:04:15,869 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 17:04:15,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:04:15,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:04:15 BasicIcfg [2020-11-09 17:04:15,873 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:04:15,875 INFO L168 Benchmark]: Toolchain (without parser) took 6800.58 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 131.6 MB in the beginning and 137.6 MB in the end (delta: -6.1 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-11-09 17:04:15,875 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 157.3 MB. Free memory is still 131.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:04:15,876 INFO L168 Benchmark]: CACSL2BoogieTranslator took 790.50 ms. Allocated memory is still 157.3 MB. Free memory was 130.8 MB in the beginning and 133.4 MB in the end (delta: -2.6 MB). Peak memory consumption was 26.8 MB. Max. memory is 8.0 GB. [2020-11-09 17:04:15,877 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.18 ms. Allocated memory is still 157.3 MB. Free memory was 132.9 MB in the beginning and 131.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:04:15,878 INFO L168 Benchmark]: Boogie Preprocessor took 27.64 ms. Allocated memory is still 157.3 MB. Free memory was 131.3 MB in the beginning and 129.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:04:15,880 INFO L168 Benchmark]: RCFGBuilder took 629.69 ms. Allocated memory is still 157.3 MB. Free memory was 129.8 MB in the beginning and 110.4 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-11-09 17:04:15,882 INFO L168 Benchmark]: TraceAbstraction took 5288.42 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 109.9 MB in the beginning and 137.6 MB in the end (delta: -27.8 MB). Peak memory consumption was 4.7 MB. Max. memory is 8.0 GB. [2020-11-09 17:04:15,886 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 157.3 MB. Free memory is still 131.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 790.50 ms. Allocated memory is still 157.3 MB. Free memory was 130.8 MB in the beginning and 133.4 MB in the end (delta: -2.6 MB). Peak memory consumption was 26.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 50.18 ms. Allocated memory is still 157.3 MB. Free memory was 132.9 MB in the beginning and 131.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.64 ms. Allocated memory is still 157.3 MB. Free memory was 131.3 MB in the beginning and 129.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 629.69 ms. Allocated memory is still 157.3 MB. Free memory was 129.8 MB in the beginning and 110.4 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5288.42 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 109.9 MB in the beginning and 137.6 MB in the end (delta: -27.8 MB). Peak memory consumption was 4.7 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: 4.0s, 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: 5.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 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...