/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe025_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 14:48:00,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 14:48:00,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 14:48:00,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 14:48:00,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 14:48:00,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 14:48:00,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 14:48:00,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 14:48:00,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 14:48:00,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 14:48:00,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 14:48:00,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 14:48:00,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 14:48:00,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 14:48:00,984 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 14:48:00,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 14:48:00,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 14:48:00,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 14:48:00,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 14:48:00,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 14:48:00,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 14:48:01,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 14:48:01,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 14:48:01,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 14:48:01,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 14:48:01,014 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 14:48:01,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 14:48:01,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 14:48:01,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 14:48:01,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 14:48:01,019 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 14:48:01,020 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 14:48:01,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 14:48:01,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 14:48:01,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 14:48:01,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 14:48:01,024 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.epf [2021-01-20 14:48:01,052 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 14:48:01,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 14:48:01,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 14:48:01,054 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 14:48:01,054 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 14:48:01,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 14:48:01,055 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 14:48:01,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 14:48:01,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 14:48:01,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 14:48:01,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 14:48:01,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 14:48:01,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 14:48:01,057 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 14:48:01,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 14:48:01,057 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 14:48:01,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 14:48:01,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 14:48:01,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 14:48:01,058 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 14:48:01,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 14:48:01,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 14:48:01,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 14:48:01,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 14:48:01,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 14:48:01,060 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 14:48:01,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 14:48:01,061 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 14:48:01,061 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 14:48:01,061 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 14:48:01,061 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 14:48:01,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 14:48:01,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 14:48:01,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 14:48:01,563 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 14:48:01,564 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 14:48:01,565 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_tso.opt.i [2021-01-20 14:48:01,662 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f8cd8310/23359657df7a419fa2aca59bcfd119d2/FLAGdae0ebb02 [2021-01-20 14:48:02,459 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 14:48:02,460 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_tso.opt.i [2021-01-20 14:48:02,477 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f8cd8310/23359657df7a419fa2aca59bcfd119d2/FLAGdae0ebb02 [2021-01-20 14:48:02,658 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f8cd8310/23359657df7a419fa2aca59bcfd119d2 [2021-01-20 14:48:02,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 14:48:02,667 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 14:48:02,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 14:48:02,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 14:48:02,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 14:48:02,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:48:02" (1/1) ... [2021-01-20 14:48:02,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3728d06a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:02, skipping insertion in model container [2021-01-20 14:48:02,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:48:02" (1/1) ... [2021-01-20 14:48:02,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 14:48:02,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 14:48:03,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:48:03,169 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 14:48:03,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:48:03,404 INFO L208 MainTranslator]: Completed translation [2021-01-20 14:48:03,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:03 WrapperNode [2021-01-20 14:48:03,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 14:48:03,406 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 14:48:03,406 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 14:48:03,406 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 14:48:03,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:03" (1/1) ... [2021-01-20 14:48:03,449 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:03" (1/1) ... [2021-01-20 14:48:03,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 14:48:03,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 14:48:03,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 14:48:03,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 14:48:03,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:03" (1/1) ... [2021-01-20 14:48:03,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:03" (1/1) ... [2021-01-20 14:48:03,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:03" (1/1) ... [2021-01-20 14:48:03,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:03" (1/1) ... [2021-01-20 14:48:03,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:03" (1/1) ... [2021-01-20 14:48:03,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:03" (1/1) ... [2021-01-20 14:48:03,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:03" (1/1) ... [2021-01-20 14:48:03,503 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 14:48:03,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 14:48:03,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 14:48:03,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 14:48:03,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:03" (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 [2021-01-20 14:48:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 14:48:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 14:48:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 14:48:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 14:48:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 14:48:03,599 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 14:48:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 14:48:03,599 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 14:48:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 14:48:03,599 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 14:48:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 14:48:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 14:48:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 14:48:03,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 14:48:03,602 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 14:48:04,251 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 14:48:04,252 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 14:48:04,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:48:04 BoogieIcfgContainer [2021-01-20 14:48:04,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 14:48:04,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 14:48:04,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 14:48:04,264 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 14:48:04,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 02:48:02" (1/3) ... [2021-01-20 14:48:04,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb11016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:48:04, skipping insertion in model container [2021-01-20 14:48:04,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:03" (2/3) ... [2021-01-20 14:48:04,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb11016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:48:04, skipping insertion in model container [2021-01-20 14:48:04,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:48:04" (3/3) ... [2021-01-20 14:48:04,269 INFO L111 eAbstractionObserver]: Analyzing ICFG safe025_tso.opt.i [2021-01-20 14:48:04,287 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 14:48:04,287 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 14:48:04,291 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 14:48:04,293 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 14:48:04,342 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,342 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,342 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,342 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,343 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,343 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,343 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,343 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,344 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,344 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,344 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,344 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,345 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,345 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,346 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,346 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,346 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,346 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,346 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,347 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,347 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,347 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,347 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,348 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,350 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,351 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,351 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,351 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,352 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,352 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,352 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,355 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,356 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,356 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,357 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,357 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,368 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,369 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,370 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,370 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,379 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,379 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,379 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,380 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,384 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,385 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,385 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,385 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:04,391 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 14:48:04,406 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-20 14:48:04,444 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 14:48:04,444 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 14:48:04,445 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 14:48:04,445 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 14:48:04,445 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 14:48:04,445 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 14:48:04,445 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 14:48:04,446 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 14:48:04,463 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2021-01-20 14:48:05,433 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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) [2021-01-20 14:48:05,476 INFO L276 IsEmpty]: Start isEmpty. Operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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) [2021-01-20 14:48:05,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-20 14:48:05,526 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:05,527 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] [2021-01-20 14:48:05,528 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:05,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:05,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1953454049, now seen corresponding path program 1 times [2021-01-20 14:48:05,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:05,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935290341] [2021-01-20 14:48:05,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:06,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:06,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935290341] [2021-01-20 14:48:06,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:06,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:48:06,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875703813] [2021-01-20 14:48:06,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:48:06,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:06,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:48:06,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:48:06,167 INFO L87 Difference]: Start difference. First operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2021-01-20 14:48:06,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:06,684 INFO L93 Difference]: Finished difference Result 12200 states and 42464 transitions. [2021-01-20 14:48:06,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:48:06,687 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 42 [2021-01-20 14:48:06,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:06,856 INFO L225 Difference]: With dead ends: 12200 [2021-01-20 14:48:06,857 INFO L226 Difference]: Without dead ends: 4605 [2021-01-20 14:48:06,859 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:48:06,859 INFO L78 Accepts]: Start accepts. Automaton has 4605 states. Word has length 42 [2021-01-20 14:48:06,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:06,861 INFO L481 AbstractCegarLoop]: Abstraction has 4605 states. [2021-01-20 14:48:06,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2021-01-20 14:48:06,862 INFO L276 IsEmpty]: Start isEmpty. Operand 4605 states. [2021-01-20 14:48:06,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-20 14:48:06,881 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:06,882 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] [2021-01-20 14:48:06,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 14:48:06,884 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:06,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:06,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1502808140, now seen corresponding path program 1 times [2021-01-20 14:48:06,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:06,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908368185] [2021-01-20 14:48:06,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:07,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:07,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908368185] [2021-01-20 14:48:07,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:07,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:48:07,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735405820] [2021-01-20 14:48:07,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:48:07,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:07,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:48:07,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:48:07,106 INFO L87 Difference]: Start difference. First operand 4605 states. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2021-01-20 14:48:07,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:07,425 INFO L93 Difference]: Finished difference Result 5193 states and 17516 transitions. [2021-01-20 14:48:07,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:48:07,426 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 44 [2021-01-20 14:48:07,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:07,462 INFO L225 Difference]: With dead ends: 5193 [2021-01-20 14:48:07,463 INFO L226 Difference]: Without dead ends: 4213 [2021-01-20 14:48:07,463 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:48:07,464 INFO L78 Accepts]: Start accepts. Automaton has 4213 states. Word has length 44 [2021-01-20 14:48:07,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:07,464 INFO L481 AbstractCegarLoop]: Abstraction has 4213 states. [2021-01-20 14:48:07,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2021-01-20 14:48:07,465 INFO L276 IsEmpty]: Start isEmpty. Operand 4213 states. [2021-01-20 14:48:07,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-20 14:48:07,476 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:07,476 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] [2021-01-20 14:48:07,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 14:48:07,477 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:07,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:07,478 INFO L82 PathProgramCache]: Analyzing trace with hash 2080522916, now seen corresponding path program 1 times [2021-01-20 14:48:07,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:07,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465492457] [2021-01-20 14:48:07,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:07,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:07,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465492457] [2021-01-20 14:48:07,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:07,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:48:07,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712314680] [2021-01-20 14:48:07,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:48:07,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:07,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:48:07,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:48:07,705 INFO L87 Difference]: Start difference. First operand 4213 states. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2021-01-20 14:48:07,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:07,992 INFO L93 Difference]: Finished difference Result 4549 states and 15228 transitions. [2021-01-20 14:48:07,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:48:07,993 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 45 [2021-01-20 14:48:07,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:08,026 INFO L225 Difference]: With dead ends: 4549 [2021-01-20 14:48:08,026 INFO L226 Difference]: Without dead ends: 3765 [2021-01-20 14:48:08,026 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:48:08,027 INFO L78 Accepts]: Start accepts. Automaton has 3765 states. Word has length 45 [2021-01-20 14:48:08,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:08,027 INFO L481 AbstractCegarLoop]: Abstraction has 3765 states. [2021-01-20 14:48:08,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2021-01-20 14:48:08,028 INFO L276 IsEmpty]: Start isEmpty. Operand 3765 states. [2021-01-20 14:48:08,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-20 14:48:08,039 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:08,039 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] [2021-01-20 14:48:08,040 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 14:48:08,040 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:08,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:08,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1485652643, now seen corresponding path program 1 times [2021-01-20 14:48:08,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:08,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777999090] [2021-01-20 14:48:08,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:08,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:08,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777999090] [2021-01-20 14:48:08,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:08,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:48:08,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882520481] [2021-01-20 14:48:08,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:48:08,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:08,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:48:08,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:48:08,236 INFO L87 Difference]: Start difference. First operand 3765 states. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2021-01-20 14:48:08,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:08,445 INFO L93 Difference]: Finished difference Result 5550 states and 18620 transitions. [2021-01-20 14:48:08,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:48:08,446 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 47 [2021-01-20 14:48:08,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:08,473 INFO L225 Difference]: With dead ends: 5550 [2021-01-20 14:48:08,473 INFO L226 Difference]: Without dead ends: 3275 [2021-01-20 14:48:08,474 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:48:08,474 INFO L78 Accepts]: Start accepts. Automaton has 3275 states. Word has length 47 [2021-01-20 14:48:08,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:08,474 INFO L481 AbstractCegarLoop]: Abstraction has 3275 states. [2021-01-20 14:48:08,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2021-01-20 14:48:08,475 INFO L276 IsEmpty]: Start isEmpty. Operand 3275 states. [2021-01-20 14:48:08,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-20 14:48:08,484 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:08,485 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] [2021-01-20 14:48:08,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 14:48:08,485 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:08,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:08,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1266801623, now seen corresponding path program 2 times [2021-01-20 14:48:08,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:08,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543607097] [2021-01-20 14:48:08,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:08,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:08,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543607097] [2021-01-20 14:48:08,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:08,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:48:08,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077198079] [2021-01-20 14:48:08,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:48:08,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:08,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:48:08,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:48:08,724 INFO L87 Difference]: Start difference. First operand 3275 states. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2021-01-20 14:48:08,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:08,932 INFO L93 Difference]: Finished difference Result 4063 states and 13251 transitions. [2021-01-20 14:48:08,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:48:08,933 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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 47 [2021-01-20 14:48:08,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:08,947 INFO L225 Difference]: With dead ends: 4063 [2021-01-20 14:48:08,947 INFO L226 Difference]: Without dead ends: 2971 [2021-01-20 14:48:08,948 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:48:08,948 INFO L78 Accepts]: Start accepts. Automaton has 2971 states. Word has length 47 [2021-01-20 14:48:08,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:08,949 INFO L481 AbstractCegarLoop]: Abstraction has 2971 states. [2021-01-20 14:48:08,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2021-01-20 14:48:08,949 INFO L276 IsEmpty]: Start isEmpty. Operand 2971 states. [2021-01-20 14:48:08,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-20 14:48:08,960 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:08,960 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] [2021-01-20 14:48:08,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 14:48:08,960 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:08,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:08,961 INFO L82 PathProgramCache]: Analyzing trace with hash -2035932160, now seen corresponding path program 1 times [2021-01-20 14:48:08,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:08,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60130221] [2021-01-20 14:48:08,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:08,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:09,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:09,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60130221] [2021-01-20 14:48:09,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:09,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:48:09,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888186841] [2021-01-20 14:48:09,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:48:09,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:09,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:48:09,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:48:09,131 INFO L87 Difference]: Start difference. First operand 2971 states. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2021-01-20 14:48:09,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:09,347 INFO L93 Difference]: Finished difference Result 2995 states and 9441 transitions. [2021-01-20 14:48:09,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:48:09,348 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2021-01-20 14:48:09,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:09,358 INFO L225 Difference]: With dead ends: 2995 [2021-01-20 14:48:09,358 INFO L226 Difference]: Without dead ends: 2095 [2021-01-20 14:48:09,358 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-01-20 14:48:09,359 INFO L78 Accepts]: Start accepts. Automaton has 2095 states. Word has length 48 [2021-01-20 14:48:09,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:09,359 INFO L481 AbstractCegarLoop]: Abstraction has 2095 states. [2021-01-20 14:48:09,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2021-01-20 14:48:09,360 INFO L276 IsEmpty]: Start isEmpty. Operand 2095 states. [2021-01-20 14:48:09,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-20 14:48:09,366 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:09,366 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] [2021-01-20 14:48:09,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 14:48:09,367 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:09,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:09,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1922996831, now seen corresponding path program 1 times [2021-01-20 14:48:09,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:09,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201358459] [2021-01-20 14:48:09,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:09,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:09,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201358459] [2021-01-20 14:48:09,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:09,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 14:48:09,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728316944] [2021-01-20 14:48:09,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 14:48:09,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:09,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 14:48:09,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 14:48:09,566 INFO L87 Difference]: Start difference. First operand 2095 states. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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) [2021-01-20 14:48:09,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:09,787 INFO L93 Difference]: Finished difference Result 1609 states and 4791 transitions. [2021-01-20 14:48:09,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-20 14:48:09,788 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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 50 [2021-01-20 14:48:09,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:09,793 INFO L225 Difference]: With dead ends: 1609 [2021-01-20 14:48:09,793 INFO L226 Difference]: Without dead ends: 1141 [2021-01-20 14:48:09,794 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-01-20 14:48:09,794 INFO L78 Accepts]: Start accepts. Automaton has 1141 states. Word has length 50 [2021-01-20 14:48:09,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:09,794 INFO L481 AbstractCegarLoop]: Abstraction has 1141 states. [2021-01-20 14:48:09,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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) [2021-01-20 14:48:09,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states. [2021-01-20 14:48:09,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-20 14:48:09,798 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:09,798 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] [2021-01-20 14:48:09,799 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 14:48:09,799 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:09,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:09,799 INFO L82 PathProgramCache]: Analyzing trace with hash 2028376861, now seen corresponding path program 1 times [2021-01-20 14:48:09,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:09,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587621075] [2021-01-20 14:48:09,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:09,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:09,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:09,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587621075] [2021-01-20 14:48:09,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:09,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:48:09,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354506201] [2021-01-20 14:48:09,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:48:09,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:09,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:48:09,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:48:09,914 INFO L87 Difference]: Start difference. First operand 1141 states. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-01-20 14:48:10,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:10,038 INFO L93 Difference]: Finished difference Result 1584 states and 4593 transitions. [2021-01-20 14:48:10,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:48:10,038 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2021-01-20 14:48:10,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:10,042 INFO L225 Difference]: With dead ends: 1584 [2021-01-20 14:48:10,042 INFO L226 Difference]: Without dead ends: 791 [2021-01-20 14:48:10,042 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:48:10,043 INFO L78 Accepts]: Start accepts. Automaton has 791 states. Word has length 54 [2021-01-20 14:48:10,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:10,045 INFO L481 AbstractCegarLoop]: Abstraction has 791 states. [2021-01-20 14:48:10,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-01-20 14:48:10,045 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states. [2021-01-20 14:48:10,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-20 14:48:10,047 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:10,048 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] [2021-01-20 14:48:10,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-20 14:48:10,048 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:10,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:10,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1950903709, now seen corresponding path program 2 times [2021-01-20 14:48:10,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:10,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775134144] [2021-01-20 14:48:10,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:10,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:10,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775134144] [2021-01-20 14:48:10,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:10,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:48:10,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895950026] [2021-01-20 14:48:10,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:48:10,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:10,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:48:10,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:48:10,213 INFO L87 Difference]: Start difference. First operand 791 states. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-01-20 14:48:10,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:10,332 INFO L93 Difference]: Finished difference Result 1162 states and 3320 transitions. [2021-01-20 14:48:10,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:48:10,363 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2021-01-20 14:48:10,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:10,367 INFO L225 Difference]: With dead ends: 1162 [2021-01-20 14:48:10,368 INFO L226 Difference]: Without dead ends: 615 [2021-01-20 14:48:10,371 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:48:10,371 INFO L78 Accepts]: Start accepts. Automaton has 615 states. Word has length 54 [2021-01-20 14:48:10,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:10,372 INFO L481 AbstractCegarLoop]: Abstraction has 615 states. [2021-01-20 14:48:10,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-01-20 14:48:10,372 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states. [2021-01-20 14:48:10,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-20 14:48:10,375 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:10,375 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] [2021-01-20 14:48:10,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-20 14:48:10,375 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:10,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:10,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1622631359, now seen corresponding path program 3 times [2021-01-20 14:48:10,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:10,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605865191] [2021-01-20 14:48:10,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:10,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:10,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605865191] [2021-01-20 14:48:10,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:10,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:48:10,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203377875] [2021-01-20 14:48:10,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:48:10,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:10,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:48:10,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:48:10,538 INFO L87 Difference]: Start difference. First operand 615 states. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-01-20 14:48:10,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:10,631 INFO L93 Difference]: Finished difference Result 507 states and 1379 transitions. [2021-01-20 14:48:10,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-20 14:48:10,632 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2021-01-20 14:48:10,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:10,633 INFO L225 Difference]: With dead ends: 507 [2021-01-20 14:48:10,633 INFO L226 Difference]: Without dead ends: 0 [2021-01-20 14:48:10,634 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:48:10,634 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 54 [2021-01-20 14:48:10,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:10,635 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-20 14:48:10,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-01-20 14:48:10,635 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-20 14:48:10,635 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 14:48:10,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-20 14:48:10,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 02:48:10 BasicIcfg [2021-01-20 14:48:10,641 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 14:48:10,643 INFO L168 Benchmark]: Toolchain (without parser) took 7978.72 ms. Allocated memory was 302.0 MB in the beginning and 683.7 MB in the end (delta: 381.7 MB). Free memory was 277.5 MB in the beginning and 545.3 MB in the end (delta: -267.7 MB). Peak memory consumption was 116.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:48:10,644 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 302.0 MB. Free memory was 271.8 MB in the beginning and 271.7 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:48:10,645 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.13 ms. Allocated memory is still 302.0 MB. Free memory was 277.3 MB in the beginning and 281.4 MB in the end (delta: -4.2 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.0 GB. [2021-01-20 14:48:10,646 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.68 ms. Allocated memory is still 302.0 MB. Free memory was 281.4 MB in the beginning and 279.3 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:48:10,647 INFO L168 Benchmark]: Boogie Preprocessor took 28.98 ms. Allocated memory is still 302.0 MB. Free memory was 279.3 MB in the beginning and 278.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:48:10,647 INFO L168 Benchmark]: RCFGBuilder took 751.46 ms. Allocated memory is still 302.0 MB. Free memory was 278.3 MB in the beginning and 255.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:48:10,648 INFO L168 Benchmark]: TraceAbstraction took 6381.52 ms. Allocated memory was 302.0 MB in the beginning and 683.7 MB in the end (delta: 381.7 MB). Free memory was 254.2 MB in the beginning and 545.3 MB in the end (delta: -291.1 MB). Peak memory consumption was 93.7 MB. Max. memory is 16.0 GB. [2021-01-20 14:48:10,652 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 ms. Allocated memory is still 302.0 MB. Free memory was 271.8 MB in the beginning and 271.7 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 736.13 ms. Allocated memory is still 302.0 MB. Free memory was 277.3 MB in the beginning and 281.4 MB in the end (delta: -4.2 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 67.68 ms. Allocated memory is still 302.0 MB. Free memory was 281.4 MB in the beginning and 279.3 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.98 ms. Allocated memory is still 302.0 MB. Free memory was 279.3 MB in the beginning and 278.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 751.46 ms. Allocated memory is still 302.0 MB. Free memory was 278.3 MB in the beginning and 255.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6381.52 ms. Allocated memory was 302.0 MB in the beginning and 683.7 MB in the end (delta: 381.7 MB). Free memory was 254.2 MB in the beginning and 545.3 MB in the end (delta: -291.1 MB). Peak memory consumption was 93.7 MB. 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 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.1s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, HoareTripleCheckerStatistics: 955 SDtfs, 1230 SDslu, 3198 SDs, 0 SdLazy, 401 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9848occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 485 NumberOfCodeBlocks, 485 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 475 ConstructedInterpolants, 0 QuantifiedInterpolants, 57217 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...