/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 12:42:24,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 12:42:24,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 12:42:24,484 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 12:42:24,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 12:42:24,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 12:42:24,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 12:42:24,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 12:42:24,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 12:42:24,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 12:42:24,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 12:42:24,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 12:42:24,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 12:42:24,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 12:42:24,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 12:42:24,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 12:42:24,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 12:42:24,530 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 12:42:24,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 12:42:24,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 12:42:24,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 12:42:24,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 12:42:24,555 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 12:42:24,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 12:42:24,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 12:42:24,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 12:42:24,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 12:42:24,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 12:42:24,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 12:42:24,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 12:42:24,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 12:42:24,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 12:42:24,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 12:42:24,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 12:42:24,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 12:42:24,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 12:42:24,602 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-09 12:42:24,658 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 12:42:24,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 12:42:24,663 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 12:42:24,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 12:42:24,664 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 12:42:24,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 12:42:24,664 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 12:42:24,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 12:42:24,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 12:42:24,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 12:42:24,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 12:42:24,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 12:42:24,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 12:42:24,667 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 12:42:24,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 12:42:24,667 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 12:42:24,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 12:42:24,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 12:42:24,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 12:42:24,668 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 12:42:24,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 12:42:24,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 12:42:24,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 12:42:24,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-09 12:42:24,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 12:42:24,670 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 12:42:24,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 12:42:24,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 12:42:24,671 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-09 12:42:24,671 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 12:42:25,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 12:42:25,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 12:42:25,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 12:42:25,144 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 12:42:25,145 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 12:42:25,146 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.oepc.i [2020-11-09 12:42:25,230 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fe0f9b23/6f1638a2aded47bfb07351f721c4fe14/FLAG3ec9f038c [2020-11-09 12:42:26,173 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 12:42:26,173 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe004_tso.oepc.i [2020-11-09 12:42:26,192 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fe0f9b23/6f1638a2aded47bfb07351f721c4fe14/FLAG3ec9f038c [2020-11-09 12:42:26,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fe0f9b23/6f1638a2aded47bfb07351f721c4fe14 [2020-11-09 12:42:26,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 12:42:26,450 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 12:42:26,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 12:42:26,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 12:42:26,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 12:42:26,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:42:26" (1/1) ... [2020-11-09 12:42:26,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42c758b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:26, skipping insertion in model container [2020-11-09 12:42:26,469 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:42:26" (1/1) ... [2020-11-09 12:42:26,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 12:42:26,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 12:42:27,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:42:27,054 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 12:42:27,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:42:27,290 INFO L208 MainTranslator]: Completed translation [2020-11-09 12:42:27,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:27 WrapperNode [2020-11-09 12:42:27,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 12:42:27,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 12:42:27,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 12:42:27,297 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 12:42:27,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:27" (1/1) ... [2020-11-09 12:42:27,354 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:27" (1/1) ... [2020-11-09 12:42:27,397 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 12:42:27,398 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 12:42:27,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 12:42:27,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 12:42:27,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:27" (1/1) ... [2020-11-09 12:42:27,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:27" (1/1) ... [2020-11-09 12:42:27,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:27" (1/1) ... [2020-11-09 12:42:27,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:27" (1/1) ... [2020-11-09 12:42:27,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:27" (1/1) ... [2020-11-09 12:42:27,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:27" (1/1) ... [2020-11-09 12:42:27,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:27" (1/1) ... [2020-11-09 12:42:27,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 12:42:27,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 12:42:27,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 12:42:27,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 12:42:27,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:27" (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 12:42:27,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 12:42:27,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 12:42:27,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 12:42:27,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 12:42:27,554 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 12:42:27,555 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 12:42:27,555 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 12:42:27,556 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 12:42:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 12:42:27,557 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 12:42:27,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 12:42:27,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 12:42:27,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 12:42:27,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 12:42:27,560 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 12:42:28,005 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 12:42:28,006 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 12:42:28,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:42:28 BoogieIcfgContainer [2020-11-09 12:42:28,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 12:42:28,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 12:42:28,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 12:42:28,014 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 12:42:28,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:42:26" (1/3) ... [2020-11-09 12:42:28,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb61266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:42:28, skipping insertion in model container [2020-11-09 12:42:28,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:27" (2/3) ... [2020-11-09 12:42:28,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb61266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:42:28, skipping insertion in model container [2020-11-09 12:42:28,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:42:28" (3/3) ... [2020-11-09 12:42:28,017 INFO L111 eAbstractionObserver]: Analyzing ICFG safe004_tso.oepc.i [2020-11-09 12:42:28,034 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 12:42:28,034 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-09 12:42:28,038 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 12:42:28,039 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 12:42:28,069 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,069 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,069 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,070 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,070 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,070 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,070 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,070 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,071 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,071 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,071 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,072 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,072 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,072 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,072 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,073 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,073 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,073 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,073 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,073 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,074 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,074 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,074 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,075 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,075 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,075 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,075 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,076 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,076 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,076 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,076 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,076 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,077 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,077 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,077 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,080 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,081 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,081 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,081 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,086 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,086 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,087 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,089 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,090 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,090 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,090 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:42:28,092 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 12:42:28,105 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 12:42:28,128 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 12:42:28,129 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 12:42:28,129 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-09 12:42:28,129 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 12:42:28,129 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 12:42:28,129 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 12:42:28,130 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 12:42:28,130 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 12:42:28,142 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-09 12:42:28,145 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 12:42:28,148 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 12:42:28,150 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-11-09 12:42:28,218 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-11-09 12:42:28,219 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 12:42:28,230 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 12:42:28,235 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 12:42:30,763 WARN L194 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-11-09 12:42:30,959 WARN L194 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-11-09 12:42:31,813 WARN L194 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 12:42:32,111 WARN L194 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 12:42:32,234 WARN L194 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 12:42:32,259 INFO L131 LiptonReduction]: Checked pairs total: 3163 [2020-11-09 12:42:32,259 INFO L133 LiptonReduction]: Total number of compositions: 72 [2020-11-09 12:42:32,269 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-11-09 12:42:32,300 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-11-09 12:42:32,303 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-11-09 12:42:32,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 12:42:32,311 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:42:32,312 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:42:32,312 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:42:32,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:42:32,319 INFO L82 PathProgramCache]: Analyzing trace with hash 2115134997, now seen corresponding path program 1 times [2020-11-09 12:42:32,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:42:32,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041940741] [2020-11-09 12:42:32,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:42:32,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:42:32,615 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 12:42:32,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041940741] [2020-11-09 12:42:32,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:42:32,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:42:32,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575767090] [2020-11-09 12:42:32,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 12:42:32,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:42:32,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 12:42:32,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 12:42:32,650 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-11-09 12:42:32,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:42:32,703 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-11-09 12:42:32,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 12:42:32,704 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-09 12:42:32,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:42:32,723 INFO L225 Difference]: With dead ends: 362 [2020-11-09 12:42:32,723 INFO L226 Difference]: Without dead ends: 298 [2020-11-09 12:42:32,725 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 12:42:32,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-11-09 12:42:32,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-11-09 12:42:32,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-11-09 12:42:32,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-11-09 12:42:32,845 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-11-09 12:42:32,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:42:32,847 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-11-09 12:42:32,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 12:42:32,847 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-11-09 12:42:32,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 12:42:32,850 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:42:32,850 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:42:32,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 12:42:32,851 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:42:32,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:42:32,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1144664430, now seen corresponding path program 1 times [2020-11-09 12:42:32,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:42:32,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008827688] [2020-11-09 12:42:32,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:42:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:42:32,961 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 12:42:32,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008827688] [2020-11-09 12:42:32,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:42:32,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:42:32,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014635505] [2020-11-09 12:42:32,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:42:32,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:42:32,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:42:32,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:42:32,965 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-11-09 12:42:32,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:42:32,985 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-11-09 12:42:32,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:42:32,986 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-11-09 12:42:32,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:42:32,989 INFO L225 Difference]: With dead ends: 217 [2020-11-09 12:42:32,989 INFO L226 Difference]: Without dead ends: 217 [2020-11-09 12:42:32,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:42:32,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-11-09 12:42:33,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-11-09 12:42:33,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-11-09 12:42:33,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-11-09 12:42:33,011 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-11-09 12:42:33,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:42:33,012 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-11-09 12:42:33,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:42:33,012 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-11-09 12:42:33,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 12:42:33,016 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:42:33,016 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:42:33,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 12:42:33,017 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:42:33,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:42:33,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1523104206, now seen corresponding path program 1 times [2020-11-09 12:42:33,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:42:33,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696593750] [2020-11-09 12:42:33,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:42:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:42:33,130 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 12:42:33,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696593750] [2020-11-09 12:42:33,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:42:33,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:42:33,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335527871] [2020-11-09 12:42:33,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:42:33,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:42:33,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:42:33,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:42:33,133 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-11-09 12:42:33,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:42:33,163 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-11-09 12:42:33,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:42:33,164 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-09 12:42:33,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:42:33,166 INFO L225 Difference]: With dead ends: 136 [2020-11-09 12:42:33,166 INFO L226 Difference]: Without dead ends: 136 [2020-11-09 12:42:33,166 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:42:33,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-11-09 12:42:33,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-11-09 12:42:33,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-11-09 12:42:33,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-11-09 12:42:33,177 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-11-09 12:42:33,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:42:33,180 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-11-09 12:42:33,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:42:33,181 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-11-09 12:42:33,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 12:42:33,182 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:42:33,183 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:42:33,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 12:42:33,185 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:42:33,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:42:33,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1616090199, now seen corresponding path program 1 times [2020-11-09 12:42:33,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:42:33,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161260304] [2020-11-09 12:42:33,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:42:33,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:42:33,300 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 12:42:33,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161260304] [2020-11-09 12:42:33,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:42:33,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:42:33,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334326615] [2020-11-09 12:42:33,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:42:33,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:42:33,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:42:33,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:42:33,303 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-11-09 12:42:33,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:42:33,362 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-11-09 12:42:33,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:42:33,363 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-11-09 12:42:33,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:42:33,364 INFO L225 Difference]: With dead ends: 109 [2020-11-09 12:42:33,364 INFO L226 Difference]: Without dead ends: 109 [2020-11-09 12:42:33,365 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:42:33,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-11-09 12:42:33,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-11-09 12:42:33,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-09 12:42:33,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-11-09 12:42:33,375 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-11-09 12:42:33,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:42:33,376 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-11-09 12:42:33,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:42:33,376 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-11-09 12:42:33,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 12:42:33,382 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:42:33,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:42:33,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 12:42:33,383 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:42:33,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:42:33,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1930604432, now seen corresponding path program 1 times [2020-11-09 12:42:33,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:42:33,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140715449] [2020-11-09 12:42:33,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:42:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:42:33,482 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 12:42:33,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140715449] [2020-11-09 12:42:33,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:42:33,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:42:33,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39019888] [2020-11-09 12:42:33,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:42:33,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:42:33,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:42:33,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:42:33,485 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 5 states. [2020-11-09 12:42:33,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:42:33,552 INFO L93 Difference]: Finished difference Result 206 states and 430 transitions. [2020-11-09 12:42:33,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 12:42:33,553 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-11-09 12:42:33,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:42:33,554 INFO L225 Difference]: With dead ends: 206 [2020-11-09 12:42:33,554 INFO L226 Difference]: Without dead ends: 130 [2020-11-09 12:42:33,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-09 12:42:33,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-11-09 12:42:33,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 109. [2020-11-09 12:42:33,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-09 12:42:33,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 231 transitions. [2020-11-09 12:42:33,563 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 231 transitions. Word has length 18 [2020-11-09 12:42:33,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:42:33,563 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 231 transitions. [2020-11-09 12:42:33,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:42:33,564 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 231 transitions. [2020-11-09 12:42:33,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 12:42:33,564 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:42:33,565 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:42:33,565 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 12:42:33,565 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:42:33,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:42:33,566 INFO L82 PathProgramCache]: Analyzing trace with hash 129745538, now seen corresponding path program 2 times [2020-11-09 12:42:33,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:42:33,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408700473] [2020-11-09 12:42:33,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:42:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:42:33,623 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 12:42:33,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408700473] [2020-11-09 12:42:33,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:42:33,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:42:33,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630683485] [2020-11-09 12:42:33,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:42:33,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:42:33,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:42:33,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:42:33,626 INFO L87 Difference]: Start difference. First operand 109 states and 231 transitions. Second operand 4 states. [2020-11-09 12:42:33,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:42:33,656 INFO L93 Difference]: Finished difference Result 129 states and 266 transitions. [2020-11-09 12:42:33,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:42:33,657 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-11-09 12:42:33,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:42:33,657 INFO L225 Difference]: With dead ends: 129 [2020-11-09 12:42:33,658 INFO L226 Difference]: Without dead ends: 49 [2020-11-09 12:42:33,658 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 12:42:33,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-11-09 12:42:33,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-11-09 12:42:33,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-11-09 12:42:33,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 84 transitions. [2020-11-09 12:42:33,662 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 84 transitions. Word has length 18 [2020-11-09 12:42:33,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:42:33,662 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 84 transitions. [2020-11-09 12:42:33,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:42:33,663 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 84 transitions. [2020-11-09 12:42:33,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 12:42:33,663 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:42:33,663 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:42:33,664 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 12:42:33,664 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:42:33,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:42:33,664 INFO L82 PathProgramCache]: Analyzing trace with hash 30994256, now seen corresponding path program 3 times [2020-11-09 12:42:33,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:42:33,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200554730] [2020-11-09 12:42:33,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:42:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:42:33,728 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 12:42:33,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200554730] [2020-11-09 12:42:33,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:42:33,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:42:33,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012703348] [2020-11-09 12:42:33,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:42:33,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:42:33,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:42:33,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:42:33,733 INFO L87 Difference]: Start difference. First operand 49 states and 84 transitions. Second operand 4 states. [2020-11-09 12:42:33,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:42:33,755 INFO L93 Difference]: Finished difference Result 48 states and 83 transitions. [2020-11-09 12:42:33,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:42:33,772 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-11-09 12:42:33,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:42:33,772 INFO L225 Difference]: With dead ends: 48 [2020-11-09 12:42:33,772 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 12:42:33,773 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 12:42:33,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 12:42:33,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 12:42:33,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 12:42:33,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 12:42:33,774 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-11-09 12:42:33,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:42:33,774 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 12:42:33,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:42:33,774 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 12:42:33,774 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 12:42:33,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 12:42:33,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 12:42:33 BasicIcfg [2020-11-09 12:42:33,778 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 12:42:33,780 INFO L168 Benchmark]: Toolchain (without parser) took 7335.95 ms. Allocated memory was 151.0 MB in the beginning and 225.4 MB in the end (delta: 74.4 MB). Free memory was 124.9 MB in the beginning and 204.0 MB in the end (delta: -79.1 MB). Peak memory consumption was 102.3 MB. Max. memory is 8.0 GB. [2020-11-09 12:42:33,781 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:42:33,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 838.51 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 126.1 MB in the end (delta: -2.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 8.0 GB. [2020-11-09 12:42:33,782 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.56 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 124.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:42:33,783 INFO L168 Benchmark]: Boogie Preprocessor took 60.49 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 123.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:42:33,784 INFO L168 Benchmark]: RCFGBuilder took 548.37 ms. Allocated memory is still 151.0 MB. Free memory was 123.0 MB in the beginning and 100.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:42:33,785 INFO L168 Benchmark]: TraceAbstraction took 5768.20 ms. Allocated memory was 151.0 MB in the beginning and 225.4 MB in the end (delta: 74.4 MB). Free memory was 100.4 MB in the beginning and 204.0 MB in the end (delta: -103.5 MB). Peak memory consumption was 77.9 MB. Max. memory is 8.0 GB. [2020-11-09 12:42:33,789 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 838.51 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 126.1 MB in the end (delta: -2.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 103.56 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 124.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 60.49 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 123.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 548.37 ms. Allocated memory is still 151.0 MB. Free memory was 123.0 MB in the beginning and 100.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5768.20 ms. Allocated memory was 151.0 MB in the beginning and 225.4 MB in the end (delta: 74.4 MB). Free memory was 100.4 MB in the beginning and 204.0 MB in the end (delta: -103.5 MB). Peak memory consumption was 77.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 952 VarBasedMoverChecksPositive, 41 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 33 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 78 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.1s, 85 PlacesBefore, 32 PlacesAfterwards, 78 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 72 TotalNumberOfCompositions, 3163 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 4 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.6s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, HoareTripleCheckerStatistics: 140 SDtfs, 78 SDslu, 195 SDs, 0 SdLazy, 73 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 21 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 2896 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...