/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 10:13:03,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 10:13:03,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 10:13:03,997 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 10:13:03,997 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 10:13:04,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 10:13:04,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 10:13:04,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 10:13:04,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 10:13:04,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 10:13:04,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 10:13:04,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 10:13:04,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 10:13:04,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 10:13:04,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 10:13:04,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 10:13:04,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 10:13:04,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 10:13:04,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 10:13:04,036 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 10:13:04,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 10:13:04,039 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 10:13:04,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 10:13:04,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 10:13:04,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-05 10:13:04,046 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-05 10:13:04,046 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-05 10:13:04,048 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-05 10:13:04,048 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-05 10:13:04,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-05 10:13:04,049 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-05 10:13:04,050 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-05 10:13:04,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-05 10:13:04,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-05 10:13:04,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-05 10:13:04,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-05 10:13:04,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-05 10:13:04,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-05 10:13:04,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 10:13:04,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 10:13:04,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 10:13:04,060 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-Separate.epf [2021-06-05 10:13:04,094 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 10:13:04,094 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 10:13:04,095 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 10:13:04,095 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 10:13:04,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 10:13:04,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 10:13:04,096 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 10:13:04,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 10:13:04,096 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 10:13:04,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 10:13:04,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 10:13:04,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 10:13:04,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 10:13:04,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 10:13:04,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 10:13:04,097 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 10:13:04,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 10:13:04,097 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 10:13:04,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 10:13:04,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 10:13:04,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 10:13:04,098 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 10:13:04,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 10:13:04,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:13:04,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 10:13:04,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 10:13:04,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 10:13:04,099 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 10:13:04,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 10:13:04,099 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 10:13:04,099 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 10:13:04,099 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 10:13:04,099 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 10:13:04,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 10:13:04,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 10:13:04,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 10:13:04,431 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 10:13:04,431 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 10:13:04,432 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_rmo.oepc.i [2021-06-05 10:13:04,486 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a628fbf7a/84d85131113a4652bf024e4375311782/FLAGe8f5fe417 [2021-06-05 10:13:05,067 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 10:13:05,067 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_rmo.oepc.i [2021-06-05 10:13:05,077 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a628fbf7a/84d85131113a4652bf024e4375311782/FLAGe8f5fe417 [2021-06-05 10:13:05,479 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a628fbf7a/84d85131113a4652bf024e4375311782 [2021-06-05 10:13:05,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 10:13:05,483 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 10:13:05,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 10:13:05,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 10:13:05,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 10:13:05,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:13:05" (1/1) ... [2021-06-05 10:13:05,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76947be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:05, skipping insertion in model container [2021-06-05 10:13:05,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:13:05" (1/1) ... [2021-06-05 10:13:05,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 10:13:05,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 10:13:05,677 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_rmo.oepc.i[950,963] [2021-06-05 10:13:05,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:13:05,789 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 10:13:05,798 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_rmo.oepc.i[950,963] [2021-06-05 10:13:05,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:13:05,885 INFO L208 MainTranslator]: Completed translation [2021-06-05 10:13:05,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:05 WrapperNode [2021-06-05 10:13:05,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 10:13:05,886 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 10:13:05,886 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 10:13:05,886 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 10:13:05,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:05" (1/1) ... [2021-06-05 10:13:05,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:05" (1/1) ... [2021-06-05 10:13:05,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 10:13:05,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 10:13:05,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 10:13:05,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 10:13:05,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:05" (1/1) ... [2021-06-05 10:13:05,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:05" (1/1) ... [2021-06-05 10:13:05,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:05" (1/1) ... [2021-06-05 10:13:05,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:05" (1/1) ... [2021-06-05 10:13:05,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:05" (1/1) ... [2021-06-05 10:13:05,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:05" (1/1) ... [2021-06-05 10:13:05,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:05" (1/1) ... [2021-06-05 10:13:05,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 10:13:05,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 10:13:05,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 10:13:05,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 10:13:05,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:05" (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 [2021-06-05 10:13:06,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 10:13:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 10:13:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 10:13:06,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 10:13:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 10:13:06,047 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 10:13:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 10:13:06,048 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 10:13:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 10:13:06,048 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 10:13:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 10:13:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 10:13:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 10:13:06,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 10:13:06,050 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 10:13:06,419 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 10:13:06,419 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 10:13:06,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:13:06 BoogieIcfgContainer [2021-06-05 10:13:06,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 10:13:06,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 10:13:06,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 10:13:06,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 10:13:06,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 10:13:05" (1/3) ... [2021-06-05 10:13:06,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46462a9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:13:06, skipping insertion in model container [2021-06-05 10:13:06,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:05" (2/3) ... [2021-06-05 10:13:06,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46462a9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:13:06, skipping insertion in model container [2021-06-05 10:13:06,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:13:06" (3/3) ... [2021-06-05 10:13:06,428 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_rmo.oepc.i [2021-06-05 10:13:06,433 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 10:13:06,433 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 10:13:06,433 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 10:13:06,434 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 10:13:06,458 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,458 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,458 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,458 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,459 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,459 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,459 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,459 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,459 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,459 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,460 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,460 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,460 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,461 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,461 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,461 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,461 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,461 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,462 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,462 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,462 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,462 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,462 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,463 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,463 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,463 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,463 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,463 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,463 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,463 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,464 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,464 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,464 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,464 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,466 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,466 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,467 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,467 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,471 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,471 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,473 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,473 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:06,475 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 10:13:06,495 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 10:13:06,510 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:13:06,510 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:13:06,510 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:13:06,510 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:13:06,511 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:13:06,511 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:13:06,511 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:13:06,511 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 10:13:06,520 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-06-05 10:13:07,021 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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) [2021-06-05 10:13:07,065 INFO L276 IsEmpty]: Start isEmpty. Operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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) [2021-06-05 10:13:07,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-05 10:13:07,110 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:13:07,111 INFO L521 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] [2021-06-05 10:13:07,112 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:13:07,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:13:07,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1593178653, now seen corresponding path program 1 times [2021-06-05 10:13:07,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:13:07,124 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017666463] [2021-06-05 10:13:07,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:13:07,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:13:07,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:13:07,567 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:13:07,568 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017666463] [2021-06-05 10:13:07,568 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017666463] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:13:07,568 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:13:07,569 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:13:07,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268606756] [2021-06-05 10:13:07,572 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:13:07,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:13:07,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:13:07,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:13:07,612 INFO L87 Difference]: Start difference. First operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:13:07,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:13:07,972 INFO L93 Difference]: Finished difference Result 13343 states and 46433 transitions. [2021-06-05 10:13:07,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:13:07,975 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-06-05 10:13:07,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:13:08,029 INFO L225 Difference]: With dead ends: 13343 [2021-06-05 10:13:08,029 INFO L226 Difference]: Without dead ends: 5048 [2021-06-05 10:13:08,030 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 141.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:13:08,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5048 states. [2021-06-05 10:13:08,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5048 to 5048. [2021-06-05 10:13:08,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5048 states, 5047 states have (on average 3.408559540320983) internal successors, (17203), 5047 states have internal predecessors, (17203), 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) [2021-06-05 10:13:08,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5048 states to 5048 states and 17203 transitions. [2021-06-05 10:13:08,408 INFO L78 Accepts]: Start accepts. Automaton has 5048 states and 17203 transitions. Word has length 49 [2021-06-05 10:13:08,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:13:08,409 INFO L482 AbstractCegarLoop]: Abstraction has 5048 states and 17203 transitions. [2021-06-05 10:13:08,410 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:13:08,410 INFO L276 IsEmpty]: Start isEmpty. Operand 5048 states and 17203 transitions. [2021-06-05 10:13:08,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 10:13:08,419 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:13:08,419 INFO L521 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] [2021-06-05 10:13:08,420 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 10:13:08,420 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:13:08,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:13:08,421 INFO L82 PathProgramCache]: Analyzing trace with hash 2100147364, now seen corresponding path program 1 times [2021-06-05 10:13:08,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:13:08,421 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080372578] [2021-06-05 10:13:08,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:13:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:13:08,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:13:08,544 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:13:08,544 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080372578] [2021-06-05 10:13:08,544 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080372578] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:13:08,544 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:13:08,544 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:13:08,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521014097] [2021-06-05 10:13:08,546 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:13:08,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:13:08,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:13:08,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:13:08,549 INFO L87 Difference]: Start difference. First operand 5048 states and 17203 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:13:08,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:13:08,746 INFO L93 Difference]: Finished difference Result 5594 states and 18847 transitions. [2021-06-05 10:13:08,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:13:08,746 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-06-05 10:13:08,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:13:08,771 INFO L225 Difference]: With dead ends: 5594 [2021-06-05 10:13:08,771 INFO L226 Difference]: Without dead ends: 4334 [2021-06-05 10:13:08,773 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 115.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:13:08,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4334 states. [2021-06-05 10:13:08,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4334 to 4334. [2021-06-05 10:13:08,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4334 states, 4333 states have (on average 3.3637202861758597) internal successors, (14575), 4333 states have internal predecessors, (14575), 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) [2021-06-05 10:13:08,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4334 states to 4334 states and 14575 transitions. [2021-06-05 10:13:08,942 INFO L78 Accepts]: Start accepts. Automaton has 4334 states and 14575 transitions. Word has length 51 [2021-06-05 10:13:08,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:13:08,943 INFO L482 AbstractCegarLoop]: Abstraction has 4334 states and 14575 transitions. [2021-06-05 10:13:08,944 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:13:08,944 INFO L276 IsEmpty]: Start isEmpty. Operand 4334 states and 14575 transitions. [2021-06-05 10:13:08,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-06-05 10:13:08,954 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:13:08,955 INFO L521 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] [2021-06-05 10:13:08,955 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 10:13:08,955 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:13:08,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:13:08,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1690028140, now seen corresponding path program 1 times [2021-06-05 10:13:08,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:13:08,956 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053317719] [2021-06-05 10:13:08,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:13:08,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:13:09,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:13:09,090 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:13:09,090 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053317719] [2021-06-05 10:13:09,090 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053317719] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:13:09,091 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:13:09,091 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:13:09,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446327706] [2021-06-05 10:13:09,091 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:13:09,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:13:09,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:13:09,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:13:09,094 INFO L87 Difference]: Start difference. First operand 4334 states and 14575 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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) [2021-06-05 10:13:09,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:13:09,322 INFO L93 Difference]: Finished difference Result 6742 states and 22512 transitions. [2021-06-05 10:13:09,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:13:09,322 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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 52 [2021-06-05 10:13:09,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:13:09,346 INFO L225 Difference]: With dead ends: 6742 [2021-06-05 10:13:09,346 INFO L226 Difference]: Without dead ends: 3158 [2021-06-05 10:13:09,346 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 120.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:13:09,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3158 states. [2021-06-05 10:13:09,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3158 to 3158. [2021-06-05 10:13:09,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3158 states, 3157 states have (on average 3.3268926195755464) internal successors, (10503), 3157 states have internal predecessors, (10503), 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) [2021-06-05 10:13:09,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3158 states to 3158 states and 10503 transitions. [2021-06-05 10:13:09,453 INFO L78 Accepts]: Start accepts. Automaton has 3158 states and 10503 transitions. Word has length 52 [2021-06-05 10:13:09,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:13:09,454 INFO L482 AbstractCegarLoop]: Abstraction has 3158 states and 10503 transitions. [2021-06-05 10:13:09,454 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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) [2021-06-05 10:13:09,454 INFO L276 IsEmpty]: Start isEmpty. Operand 3158 states and 10503 transitions. [2021-06-05 10:13:09,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 10:13:09,461 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:13:09,461 INFO L521 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] [2021-06-05 10:13:09,461 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 10:13:09,461 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:13:09,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:13:09,462 INFO L82 PathProgramCache]: Analyzing trace with hash 792894823, now seen corresponding path program 1 times [2021-06-05 10:13:09,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:13:09,462 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191633376] [2021-06-05 10:13:09,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:13:09,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:13:09,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:13:09,573 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:13:09,573 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191633376] [2021-06-05 10:13:09,573 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191633376] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:13:09,573 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:13:09,573 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:13:09,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507023254] [2021-06-05 10:13:09,574 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:13:09,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:13:09,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:13:09,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:13:09,575 INFO L87 Difference]: Start difference. First operand 3158 states and 10503 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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) [2021-06-05 10:13:09,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:13:09,746 INFO L93 Difference]: Finished difference Result 3962 states and 12986 transitions. [2021-06-05 10:13:09,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:13:09,746 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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 [2021-06-05 10:13:09,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:13:09,774 INFO L225 Difference]: With dead ends: 3962 [2021-06-05 10:13:09,775 INFO L226 Difference]: Without dead ends: 2870 [2021-06-05 10:13:09,775 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 103.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:13:09,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states. [2021-06-05 10:13:09,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 2870. [2021-06-05 10:13:09,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2870 states, 2869 states have (on average 3.2732659463227605) internal successors, (9391), 2869 states have internal predecessors, (9391), 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) [2021-06-05 10:13:09,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2870 states to 2870 states and 9391 transitions. [2021-06-05 10:13:09,849 INFO L78 Accepts]: Start accepts. Automaton has 2870 states and 9391 transitions. Word has length 54 [2021-06-05 10:13:09,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:13:09,850 INFO L482 AbstractCegarLoop]: Abstraction has 2870 states and 9391 transitions. [2021-06-05 10:13:09,850 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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) [2021-06-05 10:13:09,850 INFO L276 IsEmpty]: Start isEmpty. Operand 2870 states and 9391 transitions. [2021-06-05 10:13:09,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-05 10:13:09,857 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:13:09,858 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:13:09,858 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 10:13:09,862 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:13:09,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:13:09,862 INFO L82 PathProgramCache]: Analyzing trace with hash -173034250, now seen corresponding path program 1 times [2021-06-05 10:13:09,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:13:09,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603691299] [2021-06-05 10:13:09,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:13:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:13:10,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:13:10,011 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:13:10,011 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603691299] [2021-06-05 10:13:10,011 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603691299] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:13:10,011 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:13:10,011 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:13:10,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997955671] [2021-06-05 10:13:10,012 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:13:10,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:13:10,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:13:10,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:13:10,013 INFO L87 Difference]: Start difference. First operand 2870 states and 9391 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:13:10,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:13:10,168 INFO L93 Difference]: Finished difference Result 2978 states and 9484 transitions. [2021-06-05 10:13:10,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:13:10,169 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-06-05 10:13:10,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:13:10,176 INFO L225 Difference]: With dead ends: 2978 [2021-06-05 10:13:10,176 INFO L226 Difference]: Without dead ends: 2078 [2021-06-05 10:13:10,177 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 119.9ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 10:13:10,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2078 states. [2021-06-05 10:13:10,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2078 to 2078. [2021-06-05 10:13:10,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2078 states, 2077 states have (on average 3.1376986037554166) internal successors, (6517), 2077 states have internal predecessors, (6517), 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) [2021-06-05 10:13:10,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2078 states to 2078 states and 6517 transitions. [2021-06-05 10:13:10,261 INFO L78 Accepts]: Start accepts. Automaton has 2078 states and 6517 transitions. Word has length 55 [2021-06-05 10:13:10,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:13:10,261 INFO L482 AbstractCegarLoop]: Abstraction has 2078 states and 6517 transitions. [2021-06-05 10:13:10,261 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:13:10,262 INFO L276 IsEmpty]: Start isEmpty. Operand 2078 states and 6517 transitions. [2021-06-05 10:13:10,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-05 10:13:10,267 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:13:10,267 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:13:10,267 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 10:13:10,267 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:13:10,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:13:10,267 INFO L82 PathProgramCache]: Analyzing trace with hash 2002222771, now seen corresponding path program 1 times [2021-06-05 10:13:10,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:13:10,269 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781128379] [2021-06-05 10:13:10,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:13:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:13:10,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:13:10,404 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:13:10,404 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781128379] [2021-06-05 10:13:10,405 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781128379] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:13:10,405 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:13:10,405 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:13:10,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764043741] [2021-06-05 10:13:10,405 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:13:10,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:13:10,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:13:10,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:13:10,406 INFO L87 Difference]: Start difference. First operand 2078 states and 6517 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:13:10,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:13:10,577 INFO L93 Difference]: Finished difference Result 1718 states and 5254 transitions. [2021-06-05 10:13:10,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 10:13:10,578 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-06-05 10:13:10,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:13:10,582 INFO L225 Difference]: With dead ends: 1718 [2021-06-05 10:13:10,582 INFO L226 Difference]: Without dead ends: 1250 [2021-06-05 10:13:10,583 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 145.7ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:13:10,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-06-05 10:13:10,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2021-06-05 10:13:10,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 3.008006405124099) internal successors, (3757), 1249 states have internal predecessors, (3757), 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) [2021-06-05 10:13:10,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 3757 transitions. [2021-06-05 10:13:10,610 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 3757 transitions. Word has length 57 [2021-06-05 10:13:10,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:13:10,611 INFO L482 AbstractCegarLoop]: Abstraction has 1250 states and 3757 transitions. [2021-06-05 10:13:10,611 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:13:10,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 3757 transitions. [2021-06-05 10:13:10,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 10:13:10,614 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:13:10,614 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:13:10,615 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 10:13:10,615 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:13:10,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:13:10,615 INFO L82 PathProgramCache]: Analyzing trace with hash -2022716047, now seen corresponding path program 1 times [2021-06-05 10:13:10,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:13:10,617 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871231780] [2021-06-05 10:13:10,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:13:10,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:13:10,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:13:10,736 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:13:10,739 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871231780] [2021-06-05 10:13:10,739 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871231780] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:13:10,739 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:13:10,739 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:13:10,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66917056] [2021-06-05 10:13:10,740 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:13:10,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:13:10,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:13:10,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:13:10,741 INFO L87 Difference]: Start difference. First operand 1250 states and 3757 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-06-05 10:13:10,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:13:10,814 INFO L93 Difference]: Finished difference Result 1793 states and 5391 transitions. [2021-06-05 10:13:10,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 10:13:10,815 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2021-06-05 10:13:10,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:13:10,818 INFO L225 Difference]: With dead ends: 1793 [2021-06-05 10:13:10,818 INFO L226 Difference]: Without dead ends: 895 [2021-06-05 10:13:10,818 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 83.9ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:13:10,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2021-06-05 10:13:10,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 895. [2021-06-05 10:13:10,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 894 states have (on average 2.9217002237136467) internal successors, (2612), 894 states have internal predecessors, (2612), 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) [2021-06-05 10:13:10,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 2612 transitions. [2021-06-05 10:13:10,836 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 2612 transitions. Word has length 61 [2021-06-05 10:13:10,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:13:10,836 INFO L482 AbstractCegarLoop]: Abstraction has 895 states and 2612 transitions. [2021-06-05 10:13:10,836 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-06-05 10:13:10,837 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 2612 transitions. [2021-06-05 10:13:10,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 10:13:10,839 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:13:10,839 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:13:10,839 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 10:13:10,839 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:13:10,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:13:10,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1946374265, now seen corresponding path program 2 times [2021-06-05 10:13:10,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:13:10,840 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821754257] [2021-06-05 10:13:10,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:13:10,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:13:10,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:13:10,950 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:13:10,950 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821754257] [2021-06-05 10:13:10,950 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821754257] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:13:10,951 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:13:10,951 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:13:10,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223150463] [2021-06-05 10:13:10,952 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:13:10,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:13:10,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:13:10,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:13:10,954 INFO L87 Difference]: Start difference. First operand 895 states and 2612 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-06-05 10:13:11,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:13:11,042 INFO L93 Difference]: Finished difference Result 841 states and 2450 transitions. [2021-06-05 10:13:11,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 10:13:11,042 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2021-06-05 10:13:11,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:13:11,043 INFO L225 Difference]: With dead ends: 841 [2021-06-05 10:13:11,043 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 10:13:11,043 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 84.6ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:13:11,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 10:13:11,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 10:13:11,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-06-05 10:13:11,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 10:13:11,044 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2021-06-05 10:13:11,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:13:11,044 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 10:13:11,044 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-06-05 10:13:11,044 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 10:13:11,044 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 10:13:11,045 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 10:13:11,046 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 10:13:11,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 10:13:11 BasicIcfg [2021-06-05 10:13:11,048 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 10:13:11,049 INFO L168 Benchmark]: Toolchain (without parser) took 5566.01 ms. Allocated memory was 343.9 MB in the beginning and 792.7 MB in the end (delta: 448.8 MB). Free memory was 306.0 MB in the beginning and 658.4 MB in the end (delta: -352.4 MB). Peak memory consumption was 96.8 MB. Max. memory is 16.0 GB. [2021-06-05 10:13:11,049 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 343.9 MB. Free memory was 324.4 MB in the beginning and 324.3 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:13:11,050 INFO L168 Benchmark]: CACSL2BoogieTranslator took 401.44 ms. Allocated memory is still 343.9 MB. Free memory was 305.8 MB in the beginning and 305.6 MB in the end (delta: 166.8 kB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. [2021-06-05 10:13:11,050 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.65 ms. Allocated memory is still 343.9 MB. Free memory was 305.6 MB in the beginning and 303.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:13:11,050 INFO L168 Benchmark]: Boogie Preprocessor took 30.04 ms. Allocated memory is still 343.9 MB. Free memory was 303.5 MB in the beginning and 302.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:13:11,051 INFO L168 Benchmark]: RCFGBuilder took 461.55 ms. Allocated memory is still 343.9 MB. Free memory was 302.5 MB in the beginning and 277.3 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-05 10:13:11,051 INFO L168 Benchmark]: TraceAbstraction took 4626.04 ms. Allocated memory was 343.9 MB in the beginning and 792.7 MB in the end (delta: 448.8 MB). Free memory was 277.3 MB in the beginning and 658.4 MB in the end (delta: -381.1 MB). Peak memory consumption was 68.7 MB. Max. memory is 16.0 GB. [2021-06-05 10:13:11,052 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 343.9 MB. Free memory was 324.4 MB in the beginning and 324.3 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 401.44 ms. Allocated memory is still 343.9 MB. Free memory was 305.8 MB in the beginning and 305.6 MB in the end (delta: 166.8 kB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 41.65 ms. Allocated memory is still 343.9 MB. Free memory was 305.6 MB in the beginning and 303.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.04 ms. Allocated memory is still 343.9 MB. Free memory was 303.5 MB in the beginning and 302.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 461.55 ms. Allocated memory is still 343.9 MB. Free memory was 302.5 MB in the beginning and 277.3 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4626.04 ms. Allocated memory was 343.9 MB in the beginning and 792.7 MB in the end (delta: 448.8 MB). Free memory was 277.3 MB in the beginning and 658.4 MB in the end (delta: -381.1 MB). Peak memory consumption was 68.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4537.1ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 131.8ms, AutomataDifference: 1649.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 510.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 839 SDtfs, 1086 SDslu, 2677 SDs, 0 SdLazy, 313 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 305.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 915.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=0, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 845.2ms AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 41.0ms SsaConstructionTime, 246.8ms SatisfiabilityAnalysisTime, 872.1ms InterpolantComputationTime, 440 NumberOfCodeBlocks, 440 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 432 ConstructedInterpolants, 0 QuantifiedInterpolants, 1122 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...