/usr/bin/java -Xmx16000000000 -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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-18 00:05:49,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-18 00:05:49,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-18 00:05:49,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-18 00:05:49,366 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-18 00:05:49,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-18 00:05:49,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-18 00:05:49,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-18 00:05:49,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-18 00:05:49,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-18 00:05:49,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-18 00:05:49,377 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-18 00:05:49,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-18 00:05:49,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-18 00:05:49,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-18 00:05:49,382 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-18 00:05:49,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-18 00:05:49,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-18 00:05:49,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-18 00:05:49,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-18 00:05:49,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-18 00:05:49,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-18 00:05:49,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-18 00:05:49,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-18 00:05:49,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-18 00:05:49,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-18 00:05:49,398 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-18 00:05:49,399 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-18 00:05:49,400 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-18 00:05:49,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-18 00:05:49,402 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-18 00:05:49,403 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-18 00:05:49,404 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-18 00:05:49,405 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-18 00:05:49,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-18 00:05:49,406 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-18 00:05:49,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-18 00:05:49,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-18 00:05:49,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-18 00:05:49,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-18 00:05:49,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-18 00:05:49,411 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf [2020-12-18 00:05:49,438 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-18 00:05:49,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-18 00:05:49,439 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-18 00:05:49,440 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-18 00:05:49,440 INFO L138 SettingsManager]: * Use SBE=true [2020-12-18 00:05:49,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-18 00:05:49,441 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-18 00:05:49,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-18 00:05:49,441 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-18 00:05:49,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-18 00:05:49,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-18 00:05:49,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-18 00:05:49,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-18 00:05:49,443 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-18 00:05:49,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-18 00:05:49,443 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-18 00:05:49,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-18 00:05:49,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-18 00:05:49,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-18 00:05:49,444 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-18 00:05:49,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-18 00:05:49,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-18 00:05:49,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-18 00:05:49,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-18 00:05:49,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-18 00:05:49,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-18 00:05:49,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-18 00:05:49,447 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-18 00:05:49,447 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-18 00:05:49,447 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-18 00:05:49,447 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-18 00:05:49,448 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-18 00:05:49,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-18 00:05:49,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-18 00:05:49,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-18 00:05:49,888 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-18 00:05:49,888 INFO L275 PluginConnector]: CDTParser initialized [2020-12-18 00:05:49,889 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2020-12-18 00:05:49,973 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32d4c4d0f/65a215227e484f9e92221c83a38cc080/FLAGb84b7b028 [2020-12-18 00:05:50,618 INFO L306 CDTParser]: Found 1 translation units. [2020-12-18 00:05:50,619 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2020-12-18 00:05:50,641 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32d4c4d0f/65a215227e484f9e92221c83a38cc080/FLAGb84b7b028 [2020-12-18 00:05:50,904 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32d4c4d0f/65a215227e484f9e92221c83a38cc080 [2020-12-18 00:05:50,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-18 00:05:50,911 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-18 00:05:50,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-18 00:05:50,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-18 00:05:50,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-18 00:05:50,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 12:05:50" (1/1) ... [2020-12-18 00:05:50,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@191af324 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:05:50, skipping insertion in model container [2020-12-18 00:05:50,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 12:05:50" (1/1) ... [2020-12-18 00:05:50,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-18 00:05:51,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-18 00:05:51,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-18 00:05:51,434 INFO L203 MainTranslator]: Completed pre-run [2020-12-18 00:05:51,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-18 00:05:51,634 INFO L208 MainTranslator]: Completed translation [2020-12-18 00:05:51,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:05:51 WrapperNode [2020-12-18 00:05:51,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-18 00:05:51,638 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-18 00:05:51,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-18 00:05:51,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-18 00:05:51,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:05:51" (1/1) ... [2020-12-18 00:05:51,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:05:51" (1/1) ... [2020-12-18 00:05:51,686 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-18 00:05:51,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-18 00:05:51,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-18 00:05:51,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-18 00:05:51,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:05:51" (1/1) ... [2020-12-18 00:05:51,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:05:51" (1/1) ... [2020-12-18 00:05:51,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:05:51" (1/1) ... [2020-12-18 00:05:51,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:05:51" (1/1) ... [2020-12-18 00:05:51,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:05:51" (1/1) ... [2020-12-18 00:05:51,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:05:51" (1/1) ... [2020-12-18 00:05:51,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:05:51" (1/1) ... [2020-12-18 00:05:51,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-18 00:05:51,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-18 00:05:51,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-18 00:05:51,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-18 00:05:51,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:05:51" (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 [2020-12-18 00:05:51,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-18 00:05:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-18 00:05:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-18 00:05:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-18 00:05:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-18 00:05:51,843 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-18 00:05:51,843 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-18 00:05:51,844 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-18 00:05:51,844 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-18 00:05:51,844 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-18 00:05:51,845 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-12-18 00:05:51,845 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-12-18 00:05:51,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-18 00:05:51,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-18 00:05:51,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-18 00:05:51,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-18 00:05:51,847 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-18 00:05:52,431 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-18 00:05:52,431 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-18 00:05:52,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 12:05:52 BoogieIcfgContainer [2020-12-18 00:05:52,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-18 00:05:52,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-18 00:05:52,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-18 00:05:52,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-18 00:05:52,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 12:05:50" (1/3) ... [2020-12-18 00:05:52,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f3a80f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 12:05:52, skipping insertion in model container [2020-12-18 00:05:52,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:05:51" (2/3) ... [2020-12-18 00:05:52,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f3a80f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 12:05:52, skipping insertion in model container [2020-12-18 00:05:52,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 12:05:52" (3/3) ... [2020-12-18 00:05:52,445 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.opt.i [2020-12-18 00:05:52,463 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-18 00:05:52,463 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-18 00:05:52,467 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-18 00:05:52,468 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-18 00:05:52,510 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,511 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,511 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,511 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,512 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,512 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,512 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,512 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,512 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,513 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,513 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,513 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,514 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,515 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,515 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,515 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,515 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,515 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,515 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,515 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,516 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,516 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,517 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,518 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,518 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,518 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,518 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,519 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,519 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,519 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,519 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,520 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,520 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,520 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,520 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,521 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,521 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,521 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,521 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,521 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,522 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,522 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,522 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,522 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,522 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,523 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,523 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,523 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,526 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,527 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,527 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,527 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,533 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,533 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,533 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,533 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,537 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,537 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,538 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,538 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,540 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,540 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,540 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,540 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:05:52,542 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-18 00:05:52,556 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-18 00:05:52,579 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-18 00:05:52,579 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-18 00:05:52,579 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-18 00:05:52,580 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-18 00:05:52,580 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-18 00:05:52,580 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-18 00:05:52,580 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-18 00:05:52,580 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-18 00:05:52,592 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 105 places, 95 transitions, 210 flow [2020-12-18 00:06:05,501 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:06:05,685 INFO L276 IsEmpty]: Start isEmpty. Operand has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:06:05,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-18 00:06:05,803 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:06:05,804 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-18 00:06:05,805 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:06:05,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:06:05,812 INFO L82 PathProgramCache]: Analyzing trace with hash 207288984, now seen corresponding path program 1 times [2020-12-18 00:06:05,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:06:05,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778035041] [2020-12-18 00:06:05,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:06:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:06:06,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:06:06,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778035041] [2020-12-18 00:06:06,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:06:06,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-18 00:06:06,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155932364] [2020-12-18 00:06:06,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-18 00:06:06,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:06:06,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-18 00:06:06,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-18 00:06:06,929 INFO L87 Difference]: Start difference. First operand has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:06:09,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:06:09,062 INFO L93 Difference]: Finished difference Result 93543 states and 406523 transitions. [2020-12-18 00:06:09,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-18 00:06:09,064 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2020-12-18 00:06:09,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:06:09,067 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-18 00:06:09,067 INFO L78 Accepts]: Start accepts. Automaton has 93543 states and 406523 transitions. Word has length 49 [2020-12-18 00:06:09,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:06:09,069 INFO L481 AbstractCegarLoop]: Abstraction has 93543 states and 406523 transitions. [2020-12-18 00:06:09,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:06:09,069 INFO L276 IsEmpty]: Start isEmpty. Operand 93543 states and 406523 transitions. [2020-12-18 00:06:09,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-18 00:06:09,175 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:06:09,175 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-18 00:06:09,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-18 00:06:09,176 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:06:09,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:06:09,177 INFO L82 PathProgramCache]: Analyzing trace with hash -2026880935, now seen corresponding path program 1 times [2020-12-18 00:06:09,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:06:09,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123017784] [2020-12-18 00:06:09,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:06:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:06:09,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:06:09,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123017784] [2020-12-18 00:06:09,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:06:09,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-18 00:06:09,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111652750] [2020-12-18 00:06:09,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-18 00:06:09,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:06:09,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-18 00:06:09,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-18 00:06:09,386 INFO L87 Difference]: Start difference. First operand 93543 states and 406523 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:06:11,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:06:11,128 INFO L93 Difference]: Finished difference Result 138623 states and 599247 transitions. [2020-12-18 00:06:11,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-18 00:06:11,128 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2020-12-18 00:06:11,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:06:11,130 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-18 00:06:11,130 INFO L78 Accepts]: Start accepts. Automaton has 138623 states and 599247 transitions. Word has length 51 [2020-12-18 00:06:11,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:06:11,131 INFO L481 AbstractCegarLoop]: Abstraction has 138623 states and 599247 transitions. [2020-12-18 00:06:11,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:06:11,131 INFO L276 IsEmpty]: Start isEmpty. Operand 138623 states and 599247 transitions. [2020-12-18 00:06:11,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-18 00:06:11,271 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:06:11,273 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-18 00:06:11,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-18 00:06:11,274 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:06:11,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:06:11,274 INFO L82 PathProgramCache]: Analyzing trace with hash 412575002, now seen corresponding path program 1 times [2020-12-18 00:06:11,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:06:11,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338790959] [2020-12-18 00:06:11,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:06:11,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:06:11,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:06:11,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338790959] [2020-12-18 00:06:11,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:06:11,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-18 00:06:11,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796903676] [2020-12-18 00:06:11,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-18 00:06:11,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:06:11,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-18 00:06:11,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-18 00:06:11,453 INFO L87 Difference]: Start difference. First operand 138623 states and 599247 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:06:12,134 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-12-18 00:06:14,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:06:14,402 INFO L93 Difference]: Finished difference Result 217863 states and 936639 transitions. [2020-12-18 00:06:14,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-18 00:06:14,404 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2020-12-18 00:06:14,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:06:14,405 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-18 00:06:14,405 INFO L78 Accepts]: Start accepts. Automaton has 217863 states and 936639 transitions. Word has length 53 [2020-12-18 00:06:14,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:06:14,405 INFO L481 AbstractCegarLoop]: Abstraction has 217863 states and 936639 transitions. [2020-12-18 00:06:14,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:06:14,406 INFO L276 IsEmpty]: Start isEmpty. Operand 217863 states and 936639 transitions. [2020-12-18 00:06:14,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-18 00:06:14,539 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:06:14,540 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-18 00:06:14,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-18 00:06:14,540 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:06:14,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:06:14,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1670743673, now seen corresponding path program 1 times [2020-12-18 00:06:14,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:06:14,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027910713] [2020-12-18 00:06:14,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:06:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:06:14,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:06:14,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027910713] [2020-12-18 00:06:14,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:06:14,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-18 00:06:14,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104150699] [2020-12-18 00:06:14,718 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-18 00:06:14,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:06:14,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-18 00:06:14,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-18 00:06:14,720 INFO L87 Difference]: Start difference. First operand 217863 states and 936639 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:06:18,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:06:18,933 INFO L93 Difference]: Finished difference Result 355103 states and 1518031 transitions. [2020-12-18 00:06:18,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-18 00:06:18,934 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2020-12-18 00:06:18,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:06:18,935 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-18 00:06:18,935 INFO L78 Accepts]: Start accepts. Automaton has 355103 states and 1518031 transitions. Word has length 55 [2020-12-18 00:06:18,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:06:18,935 INFO L481 AbstractCegarLoop]: Abstraction has 355103 states and 1518031 transitions. [2020-12-18 00:06:18,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:06:18,936 INFO L276 IsEmpty]: Start isEmpty. Operand 355103 states and 1518031 transitions. [2020-12-18 00:06:19,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-18 00:06:19,299 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:06:19,299 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-18 00:06:19,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-18 00:06:19,299 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:06:19,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:06:19,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1540026502, now seen corresponding path program 1 times [2020-12-18 00:06:19,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:06:19,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10597387] [2020-12-18 00:06:19,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:06:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:06:19,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:06:19,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10597387] [2020-12-18 00:06:19,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:06:19,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-18 00:06:19,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040730651] [2020-12-18 00:06:19,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-18 00:06:19,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:06:19,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-18 00:06:19,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-18 00:06:19,494 INFO L87 Difference]: Start difference. First operand 355103 states and 1518031 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:06:20,295 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-18 00:06:25,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:06:25,784 INFO L93 Difference]: Finished difference Result 501323 states and 2125647 transitions. [2020-12-18 00:06:25,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-18 00:06:25,785 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2020-12-18 00:06:25,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:06:25,786 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-18 00:06:25,786 INFO L78 Accepts]: Start accepts. Automaton has 501323 states and 2125647 transitions. Word has length 57 [2020-12-18 00:06:25,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:06:25,786 INFO L481 AbstractCegarLoop]: Abstraction has 501323 states and 2125647 transitions. [2020-12-18 00:06:25,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:06:25,786 INFO L276 IsEmpty]: Start isEmpty. Operand 501323 states and 2125647 transitions. [2020-12-18 00:06:26,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-12-18 00:06:26,115 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:06:26,115 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-18 00:06:26,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-18 00:06:26,116 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:06:26,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:06:26,116 INFO L82 PathProgramCache]: Analyzing trace with hash 860241948, now seen corresponding path program 1 times [2020-12-18 00:06:26,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:06:26,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988815678] [2020-12-18 00:06:26,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:06:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:06:26,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:06:26,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988815678] [2020-12-18 00:06:26,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:06:26,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-18 00:06:26,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139944935] [2020-12-18 00:06:26,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-18 00:06:26,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:06:26,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-18 00:06:26,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-18 00:06:26,291 INFO L87 Difference]: Start difference. First operand 501323 states and 2125647 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:06:35,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:06:35,288 INFO L93 Difference]: Finished difference Result 713803 states and 3003311 transitions. [2020-12-18 00:06:35,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-18 00:06:35,288 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2020-12-18 00:06:35,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:06:35,289 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-18 00:06:35,289 INFO L78 Accepts]: Start accepts. Automaton has 713803 states and 3003311 transitions. Word has length 58 [2020-12-18 00:06:35,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:06:35,290 INFO L481 AbstractCegarLoop]: Abstraction has 713803 states and 3003311 transitions. [2020-12-18 00:06:35,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:06:35,290 INFO L276 IsEmpty]: Start isEmpty. Operand 713803 states and 3003311 transitions. [2020-12-18 00:06:35,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-18 00:06:35,843 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:06:35,844 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-18 00:06:35,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-18 00:06:35,844 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:06:35,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:06:35,845 INFO L82 PathProgramCache]: Analyzing trace with hash 76604536, now seen corresponding path program 1 times [2020-12-18 00:06:35,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:06:35,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728480522] [2020-12-18 00:06:35,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:06:35,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:06:36,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:06:36,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728480522] [2020-12-18 00:06:36,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:06:36,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-18 00:06:36,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417525256] [2020-12-18 00:06:36,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-18 00:06:36,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:06:36,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-18 00:06:36,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-18 00:06:36,009 INFO L87 Difference]: Start difference. First operand 713803 states and 3003311 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:06:48,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:06:48,043 INFO L93 Difference]: Finished difference Result 1014443 states and 4236503 transitions. [2020-12-18 00:06:48,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-18 00:06:48,043 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2020-12-18 00:06:48,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:06:48,045 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-18 00:06:48,045 INFO L78 Accepts]: Start accepts. Automaton has 1014443 states and 4236503 transitions. Word has length 59 [2020-12-18 00:06:48,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:06:48,045 INFO L481 AbstractCegarLoop]: Abstraction has 1014443 states and 4236503 transitions. [2020-12-18 00:06:48,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:06:48,046 INFO L276 IsEmpty]: Start isEmpty. Operand 1014443 states and 4236503 transitions. [2020-12-18 00:06:50,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-18 00:06:50,009 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:06:50,009 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-18 00:06:50,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-18 00:06:50,010 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:06:50,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:06:50,010 INFO L82 PathProgramCache]: Analyzing trace with hash 916292456, now seen corresponding path program 1 times [2020-12-18 00:06:50,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:06:50,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786995740] [2020-12-18 00:06:50,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:06:50,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:06:50,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:06:50,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786995740] [2020-12-18 00:06:50,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:06:50,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-18 00:06:50,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922346342] [2020-12-18 00:06:50,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-18 00:06:50,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:06:50,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-18 00:06:50,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-18 00:06:50,367 INFO L87 Difference]: Start difference. First operand 1014443 states and 4236503 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:07:11,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:07:11,330 INFO L93 Difference]: Finished difference Result 1436363 states and 5959519 transitions. [2020-12-18 00:07:11,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-18 00:07:11,332 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2020-12-18 00:07:11,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:07:11,333 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-18 00:07:11,333 INFO L78 Accepts]: Start accepts. Automaton has 1436363 states and 5959519 transitions. Word has length 60 [2020-12-18 00:07:11,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:07:11,334 INFO L481 AbstractCegarLoop]: Abstraction has 1436363 states and 5959519 transitions. [2020-12-18 00:07:11,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:07:11,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1436363 states and 5959519 transitions. [2020-12-18 00:07:20,356 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-18 00:07:20,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-18 00:07:20,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 12:07:20 BasicIcfg [2020-12-18 00:07:20,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-18 00:07:20,390 INFO L168 Benchmark]: Toolchain (without parser) took 89461.09 ms. Allocated memory was 302.0 MB in the beginning and 15.9 GB in the end (delta: 15.6 GB). Free memory was 277.2 MB in the beginning and 4.0 GB in the end (delta: -3.7 GB). Peak memory consumption was 12.3 GB. Max. memory is 16.0 GB. [2020-12-18 00:07:20,390 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-12-18 00:07:20,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 721.85 ms. Allocated memory is still 302.0 MB. Free memory was 277.0 MB in the beginning and 245.8 MB in the end (delta: 31.2 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-12-18 00:07:20,394 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.65 ms. Allocated memory is still 302.0 MB. Free memory was 245.8 MB in the beginning and 243.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-18 00:07:20,394 INFO L168 Benchmark]: Boogie Preprocessor took 74.97 ms. Allocated memory is still 302.0 MB. Free memory was 243.8 MB in the beginning and 284.8 MB in the end (delta: -40.9 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB. [2020-12-18 00:07:20,395 INFO L168 Benchmark]: RCFGBuilder took 671.75 ms. Allocated memory is still 302.0 MB. Free memory was 284.8 MB in the beginning and 259.5 MB in the end (delta: 25.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-12-18 00:07:20,402 INFO L168 Benchmark]: TraceAbstraction took 87930.61 ms. Allocated memory was 302.0 MB in the beginning and 15.9 GB in the end (delta: 15.6 GB). Free memory was 259.5 MB in the beginning and 4.0 GB in the end (delta: -3.7 GB). Peak memory consumption was 12.3 GB. Max. memory is 16.0 GB. [2020-12-18 00:07:20,411 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 721.85 ms. Allocated memory is still 302.0 MB. Free memory was 277.0 MB in the beginning and 245.8 MB in the end (delta: 31.2 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 48.65 ms. Allocated memory is still 302.0 MB. Free memory was 245.8 MB in the beginning and 243.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 74.97 ms. Allocated memory is still 302.0 MB. Free memory was 243.8 MB in the beginning and 284.8 MB in the end (delta: -40.9 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB. * RCFGBuilder took 671.75 ms. Allocated memory is still 302.0 MB. Free memory was 284.8 MB in the beginning and 259.5 MB in the end (delta: 25.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 87930.61 ms. Allocated memory was 302.0 MB in the beginning and 15.9 GB in the end (delta: 15.6 GB). Free memory was 259.5 MB in the beginning and 4.0 GB in the end (delta: -3.7 GB). Peak memory consumption was 12.3 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 5 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 87.7s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 59.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.9s, HoareTripleCheckerStatistics: 1212 SDtfs, 2661 SDslu, 4086 SDs, 0 SdLazy, 279 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1436363occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 442 NumberOfCodeBlocks, 442 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 434 ConstructedInterpolants, 0 QuantifiedInterpolants, 67994 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...