/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 00:15:41,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 00:15:41,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 00:15:41,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 00:15:41,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 00:15:41,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 00:15:41,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 00:15:41,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 00:15:41,571 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 00:15:41,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 00:15:41,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 00:15:41,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 00:15:41,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 00:15:41,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 00:15:41,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 00:15:41,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 00:15:41,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 00:15:41,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 00:15:41,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 00:15:41,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 00:15:41,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 00:15:41,599 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 00:15:41,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 00:15:41,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 00:15:41,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-05 00:15:41,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-05 00:15:41,608 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-05 00:15:41,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-05 00:15:41,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-05 00:15:41,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-05 00:15:41,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-05 00:15:41,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-05 00:15:41,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-05 00:15:41,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-05 00:15:41,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-05 00:15:41,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-05 00:15:41,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-05 00:15:41,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-05 00:15:41,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 00:15:41,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 00:15:41,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 00:15:41,620 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 [2021-06-05 00:15:41,652 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 00:15:41,652 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 00:15:41,652 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 00:15:41,653 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 00:15:41,654 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 00:15:41,654 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 00:15:41,654 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 00:15:41,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 00:15:41,654 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 00:15:41,654 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 00:15:41,654 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 00:15:41,655 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 00:15:41,655 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 00:15:41,655 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 00:15:41,655 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 00:15:41,655 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 00:15:41,655 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 00:15:41,655 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 00:15:41,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 00:15:41,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 00:15:41,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 00:15:41,656 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 00:15:41,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 00:15:41,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 00:15:41,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 00:15:41,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 00:15:41,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 00:15:41,657 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 00:15:41,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 00:15:41,657 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 00:15:41,657 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 00:15:41,657 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 00:15:41,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 00:15:41,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 00:15:41,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 00:15:41,955 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 00:15:41,956 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 00:15:41,956 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.oepc.i [2021-06-05 00:15:42,012 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef8738f0c/19e01f06ed834a0abe261f8b98a47730/FLAG054740933 [2021-06-05 00:15:42,463 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 00:15:42,463 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.oepc.i [2021-06-05 00:15:42,480 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef8738f0c/19e01f06ed834a0abe261f8b98a47730/FLAG054740933 [2021-06-05 00:15:42,491 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef8738f0c/19e01f06ed834a0abe261f8b98a47730 [2021-06-05 00:15:42,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 00:15:42,495 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 00:15:42,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 00:15:42,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 00:15:42,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 00:15:42,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:15:42" (1/1) ... [2021-06-05 00:15:42,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f2af357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:15:42, skipping insertion in model container [2021-06-05 00:15:42,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:15:42" (1/1) ... [2021-06-05 00:15:42,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 00:15:42,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 00:15:42,662 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/safe023_tso.oepc.i[950,963] [2021-06-05 00:15:42,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:15:42,860 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 00:15:42,871 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/safe023_tso.oepc.i[950,963] [2021-06-05 00:15:42,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:15:42,976 INFO L208 MainTranslator]: Completed translation [2021-06-05 00:15:42,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:15:42 WrapperNode [2021-06-05 00:15:42,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 00:15:42,979 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 00:15:42,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 00:15:42,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 00:15:42,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:15:42" (1/1) ... [2021-06-05 00:15:43,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:15:42" (1/1) ... [2021-06-05 00:15:43,034 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 00:15:43,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 00:15:43,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 00:15:43,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 00:15:43,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:15:42" (1/1) ... [2021-06-05 00:15:43,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:15:42" (1/1) ... [2021-06-05 00:15:43,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:15:42" (1/1) ... [2021-06-05 00:15:43,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:15:42" (1/1) ... [2021-06-05 00:15:43,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:15:42" (1/1) ... [2021-06-05 00:15:43,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:15:42" (1/1) ... [2021-06-05 00:15:43,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:15:42" (1/1) ... [2021-06-05 00:15:43,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 00:15:43,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 00:15:43,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 00:15:43,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 00:15:43,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:15:42" (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 00:15:43,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 00:15:43,137 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 00:15:43,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 00:15:43,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 00:15:43,138 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 00:15:43,140 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 00:15:43,140 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 00:15:43,141 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 00:15:43,141 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 00:15:43,141 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 00:15:43,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 00:15:43,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 00:15:43,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 00:15:43,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 00:15:43,143 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 00:15:43,548 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 00:15:43,548 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 00:15:43,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:15:43 BoogieIcfgContainer [2021-06-05 00:15:43,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 00:15:43,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 00:15:43,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 00:15:43,555 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 00:15:43,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 12:15:42" (1/3) ... [2021-06-05 00:15:43,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e459b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:15:43, skipping insertion in model container [2021-06-05 00:15:43,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:15:42" (2/3) ... [2021-06-05 00:15:43,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e459b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:15:43, skipping insertion in model container [2021-06-05 00:15:43,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:15:43" (3/3) ... [2021-06-05 00:15:43,559 INFO L111 eAbstractionObserver]: Analyzing ICFG safe023_tso.oepc.i [2021-06-05 00:15:43,566 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 00:15:43,567 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 00:15:43,567 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 00:15:43,568 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 00:15:43,598 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,598 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,598 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,598 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,598 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,599 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,599 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,599 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,599 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,599 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,600 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,600 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,600 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,601 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,601 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,601 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,602 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,602 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,602 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,602 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,607 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,607 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,607 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,608 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,609 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,609 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,609 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,609 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,609 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,610 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,610 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,611 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,611 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,611 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,612 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,612 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,614 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,615 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,615 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,615 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,619 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,619 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,619 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,620 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,622 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,622 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,622 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,622 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:15:43,626 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 00:15:43,646 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 00:15:43,675 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 00:15:43,675 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 00:15:43,676 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 00:15:43,676 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 00:15:43,676 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 00:15:43,676 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 00:15:43,676 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 00:15:43,676 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 00:15:43,692 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-06-05 00:15:44,235 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 00:15:44,279 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 00:15:44,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-05 00:15:44,312 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:15:44,313 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 00:15:44,313 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:15:44,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:15:44,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1943773822, now seen corresponding path program 1 times [2021-06-05 00:15:44,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:15:44,328 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048685647] [2021-06-05 00:15:44,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:15:44,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:15:44,634 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 00:15:44,635 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:15:44,635 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048685647] [2021-06-05 00:15:44,636 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048685647] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:15:44,636 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:15:44,637 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:15:44,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575120333] [2021-06-05 00:15:44,643 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:15:44,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:15:44,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:15:44,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:15:44,679 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 00:15:45,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:15:45,020 INFO L93 Difference]: Finished difference Result 12223 states and 42407 transitions. [2021-06-05 00:15:45,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:15:45,022 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 00:15:45,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:15:45,072 INFO L225 Difference]: With dead ends: 12223 [2021-06-05 00:15:45,072 INFO L226 Difference]: Without dead ends: 4628 [2021-06-05 00:15:45,073 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 128.4ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:15:45,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4628 states. [2021-06-05 00:15:45,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4628 to 4628. [2021-06-05 00:15:45,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4628 states, 4627 states have (on average 3.38599524529933) internal successors, (15667), 4627 states have internal predecessors, (15667), 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 00:15:45,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4628 states to 4628 states and 15667 transitions. [2021-06-05 00:15:45,443 INFO L78 Accepts]: Start accepts. Automaton has 4628 states and 15667 transitions. Word has length 49 [2021-06-05 00:15:45,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:15:45,444 INFO L482 AbstractCegarLoop]: Abstraction has 4628 states and 15667 transitions. [2021-06-05 00:15:45,444 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 00:15:45,445 INFO L276 IsEmpty]: Start isEmpty. Operand 4628 states and 15667 transitions. [2021-06-05 00:15:45,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 00:15:45,455 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:15:45,455 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 00:15:45,455 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 00:15:45,455 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:15:45,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:15:45,456 INFO L82 PathProgramCache]: Analyzing trace with hash -303430371, now seen corresponding path program 1 times [2021-06-05 00:15:45,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:15:45,457 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9515885] [2021-06-05 00:15:45,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:15:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:15:45,662 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 00:15:45,663 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:15:45,663 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9515885] [2021-06-05 00:15:45,663 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9515885] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:15:45,663 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:15:45,663 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:15:45,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058896793] [2021-06-05 00:15:45,665 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:15:45,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:15:45,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:15:45,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:15:45,667 INFO L87 Difference]: Start difference. First operand 4628 states and 15667 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 00:15:45,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:15:45,843 INFO L93 Difference]: Finished difference Result 5488 states and 18430 transitions. [2021-06-05 00:15:45,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:15:45,844 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 00:15:45,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:15:45,876 INFO L225 Difference]: With dead ends: 5488 [2021-06-05 00:15:45,877 INFO L226 Difference]: Without dead ends: 4508 [2021-06-05 00:15:45,878 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 100.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:15:45,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4508 states. [2021-06-05 00:15:46,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4508 to 4508. [2021-06-05 00:15:46,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4508 states, 4507 states have (on average 3.374972265364988) internal successors, (15211), 4507 states have internal predecessors, (15211), 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 00:15:46,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4508 states to 4508 states and 15211 transitions. [2021-06-05 00:15:46,062 INFO L78 Accepts]: Start accepts. Automaton has 4508 states and 15211 transitions. Word has length 51 [2021-06-05 00:15:46,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:15:46,062 INFO L482 AbstractCegarLoop]: Abstraction has 4508 states and 15211 transitions. [2021-06-05 00:15:46,063 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 00:15:46,063 INFO L276 IsEmpty]: Start isEmpty. Operand 4508 states and 15211 transitions. [2021-06-05 00:15:46,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-05 00:15:46,076 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:15:46,076 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] [2021-06-05 00:15:46,076 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 00:15:46,077 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:15:46,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:15:46,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1290194594, now seen corresponding path program 1 times [2021-06-05 00:15:46,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:15:46,084 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597956213] [2021-06-05 00:15:46,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:15:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:15:46,215 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 00:15:46,215 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:15:46,216 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597956213] [2021-06-05 00:15:46,216 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597956213] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:15:46,216 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:15:46,216 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:15:46,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137059008] [2021-06-05 00:15:46,217 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:15:46,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:15:46,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:15:46,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:15:46,220 INFO L87 Difference]: Start difference. First operand 4508 states and 15211 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:15:46,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:15:46,390 INFO L93 Difference]: Finished difference Result 4898 states and 16363 transitions. [2021-06-05 00:15:46,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:15:46,391 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-06-05 00:15:46,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:15:46,416 INFO L225 Difference]: With dead ends: 4898 [2021-06-05 00:15:46,416 INFO L226 Difference]: Without dead ends: 3998 [2021-06-05 00:15:46,417 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 102.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:15:46,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3998 states. [2021-06-05 00:15:46,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3998 to 3998. [2021-06-05 00:15:46,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3998 states, 3997 states have (on average 3.3432574430823117) internal successors, (13363), 3997 states have internal predecessors, (13363), 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 00:15:46,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3998 states to 3998 states and 13363 transitions. [2021-06-05 00:15:46,577 INFO L78 Accepts]: Start accepts. Automaton has 3998 states and 13363 transitions. Word has length 53 [2021-06-05 00:15:46,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:15:46,578 INFO L482 AbstractCegarLoop]: Abstraction has 3998 states and 13363 transitions. [2021-06-05 00:15:46,578 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:15:46,578 INFO L276 IsEmpty]: Start isEmpty. Operand 3998 states and 13363 transitions. [2021-06-05 00:15:46,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 00:15:46,589 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:15:46,589 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 00:15:46,589 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 00:15:46,589 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:15:46,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:15:46,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1811033892, now seen corresponding path program 1 times [2021-06-05 00:15:46,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:15:46,590 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425613228] [2021-06-05 00:15:46,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:15:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:15:46,682 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 00:15:46,682 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:15:46,682 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425613228] [2021-06-05 00:15:46,682 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425613228] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:15:46,682 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:15:46,682 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:15:46,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437034786] [2021-06-05 00:15:46,683 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:15:46,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:15:46,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:15:46,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:15:46,684 INFO L87 Difference]: Start difference. First operand 3998 states and 13363 transitions. 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) [2021-06-05 00:15:46,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:15:46,939 INFO L93 Difference]: Finished difference Result 8913 states and 29300 transitions. [2021-06-05 00:15:46,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 00:15:46,940 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 [2021-06-05 00:15:46,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:15:46,961 INFO L225 Difference]: With dead ends: 8913 [2021-06-05 00:15:46,961 INFO L226 Difference]: Without dead ends: 3868 [2021-06-05 00:15:46,962 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 159.8ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:15:46,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3868 states. [2021-06-05 00:15:47,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3868 to 2928. [2021-06-05 00:15:47,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2928 states, 2927 states have (on average 3.169115134950461) internal successors, (9276), 2927 states have internal predecessors, (9276), 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 00:15:47,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2928 states to 2928 states and 9276 transitions. [2021-06-05 00:15:47,116 INFO L78 Accepts]: Start accepts. Automaton has 2928 states and 9276 transitions. Word has length 54 [2021-06-05 00:15:47,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:15:47,117 INFO L482 AbstractCegarLoop]: Abstraction has 2928 states and 9276 transitions. [2021-06-05 00:15:47,117 INFO L483 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) [2021-06-05 00:15:47,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2928 states and 9276 transitions. [2021-06-05 00:15:47,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 00:15:47,126 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:15:47,126 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] [2021-06-05 00:15:47,126 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 00:15:47,127 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:15:47,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:15:47,131 INFO L82 PathProgramCache]: Analyzing trace with hash 690569953, now seen corresponding path program 1 times [2021-06-05 00:15:47,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:15:47,132 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583809190] [2021-06-05 00:15:47,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:15:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:15:47,270 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 00:15:47,270 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:15:47,270 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583809190] [2021-06-05 00:15:47,271 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583809190] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:15:47,271 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:15:47,271 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:15:47,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140408549] [2021-06-05 00:15:47,272 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:15:47,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:15:47,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:15:47,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:15:47,273 INFO L87 Difference]: Start difference. First operand 2928 states and 9276 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 00:15:47,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:15:47,406 INFO L93 Difference]: Finished difference Result 3336 states and 10430 transitions. [2021-06-05 00:15:47,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 00:15:47,407 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 56 [2021-06-05 00:15:47,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:15:47,413 INFO L225 Difference]: With dead ends: 3336 [2021-06-05 00:15:47,413 INFO L226 Difference]: Without dead ends: 1576 [2021-06-05 00:15:47,414 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 124.1ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 00:15:47,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-06-05 00:15:47,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1576. [2021-06-05 00:15:47,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 2.9638095238095237) internal successors, (4668), 1575 states have internal predecessors, (4668), 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 00:15:47,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 4668 transitions. [2021-06-05 00:15:47,459 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 4668 transitions. Word has length 56 [2021-06-05 00:15:47,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:15:47,459 INFO L482 AbstractCegarLoop]: Abstraction has 1576 states and 4668 transitions. [2021-06-05 00:15:47,459 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 00:15:47,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 4668 transitions. [2021-06-05 00:15:47,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-05 00:15:47,463 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:15:47,463 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 00:15:47,463 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 00:15:47,463 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:15:47,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:15:47,464 INFO L82 PathProgramCache]: Analyzing trace with hash -708582085, now seen corresponding path program 1 times [2021-06-05 00:15:47,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:15:47,464 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666469397] [2021-06-05 00:15:47,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:15:47,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:15:47,597 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 00:15:47,597 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:15:47,597 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666469397] [2021-06-05 00:15:47,598 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666469397] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:15:47,598 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:15:47,598 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:15:47,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374281263] [2021-06-05 00:15:47,598 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:15:47,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:15:47,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:15:47,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:15:47,599 INFO L87 Difference]: Start difference. First operand 1576 states and 4668 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 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 00:15:47,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:15:47,726 INFO L93 Difference]: Finished difference Result 1797 states and 5273 transitions. [2021-06-05 00:15:47,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:15:47,727 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 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 00:15:47,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:15:47,731 INFO L225 Difference]: With dead ends: 1797 [2021-06-05 00:15:47,731 INFO L226 Difference]: Without dead ends: 1421 [2021-06-05 00:15:47,731 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 83.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:15:47,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2021-06-05 00:15:47,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1421. [2021-06-05 00:15:47,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1421 states, 1420 states have (on average 2.9140845070422534) internal successors, (4138), 1420 states have internal predecessors, (4138), 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 00:15:47,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 4138 transitions. [2021-06-05 00:15:47,764 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 4138 transitions. Word has length 57 [2021-06-05 00:15:47,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:15:47,765 INFO L482 AbstractCegarLoop]: Abstraction has 1421 states and 4138 transitions. [2021-06-05 00:15:47,765 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 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 00:15:47,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 4138 transitions. [2021-06-05 00:15:47,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 00:15:47,768 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:15:47,768 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] [2021-06-05 00:15:47,768 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 00:15:47,768 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:15:47,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:15:47,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1038431362, now seen corresponding path program 1 times [2021-06-05 00:15:47,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:15:47,772 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945635495] [2021-06-05 00:15:47,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:15:47,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:15:47,886 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 00:15:47,886 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:15:47,886 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945635495] [2021-06-05 00:15:47,886 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945635495] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:15:47,886 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:15:47,886 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:15:47,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410592746] [2021-06-05 00:15:47,887 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:15:47,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:15:47,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:15:47,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:15:47,888 INFO L87 Difference]: Start difference. First operand 1421 states and 4138 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:15:47,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:15:47,995 INFO L93 Difference]: Finished difference Result 1307 states and 3699 transitions. [2021-06-05 00:15:47,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 00:15:47,995 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-06-05 00:15:47,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:15:47,998 INFO L225 Difference]: With dead ends: 1307 [2021-06-05 00:15:47,998 INFO L226 Difference]: Without dead ends: 1031 [2021-06-05 00:15:47,999 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 88.8ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 00:15:48,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2021-06-05 00:15:48,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1031. [2021-06-05 00:15:48,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 1030 states have (on average 2.774757281553398) internal successors, (2858), 1030 states have internal predecessors, (2858), 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 00:15:48,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 2858 transitions. [2021-06-05 00:15:48,021 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 2858 transitions. Word has length 58 [2021-06-05 00:15:48,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:15:48,022 INFO L482 AbstractCegarLoop]: Abstraction has 1031 states and 2858 transitions. [2021-06-05 00:15:48,022 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:15:48,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 2858 transitions. [2021-06-05 00:15:48,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-06-05 00:15:48,025 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:15:48,025 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] [2021-06-05 00:15:48,025 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 00:15:48,025 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:15:48,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:15:48,025 INFO L82 PathProgramCache]: Analyzing trace with hash 2126121667, now seen corresponding path program 1 times [2021-06-05 00:15:48,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:15:48,026 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115814950] [2021-06-05 00:15:48,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:15:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:15:48,148 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 00:15:48,149 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:15:48,149 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115814950] [2021-06-05 00:15:48,150 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115814950] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:15:48,150 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:15:48,151 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 00:15:48,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584276623] [2021-06-05 00:15:48,151 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 00:15:48,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:15:48,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 00:15:48,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:15:48,152 INFO L87 Difference]: Start difference. First operand 1031 states and 2858 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:15:48,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:15:48,222 INFO L93 Difference]: Finished difference Result 734 states and 1967 transitions. [2021-06-05 00:15:48,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 00:15:48,222 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-06-05 00:15:48,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:15:48,223 INFO L225 Difference]: With dead ends: 734 [2021-06-05 00:15:48,223 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 00:15:48,223 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 84.2ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-06-05 00:15:48,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 00:15:48,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 00:15:48,224 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 00:15:48,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 00:15:48,224 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2021-06-05 00:15:48,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:15:48,224 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 00:15:48,224 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:15:48,224 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 00:15:48,224 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 00:15:48,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 00:15:48,226 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 00:15:48,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 12:15:48 BasicIcfg [2021-06-05 00:15:48,229 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 00:15:48,230 INFO L168 Benchmark]: Toolchain (without parser) took 5734.95 ms. Allocated memory was 354.4 MB in the beginning and 897.6 MB in the end (delta: 543.2 MB). Free memory was 316.8 MB in the beginning and 647.3 MB in the end (delta: -330.5 MB). Peak memory consumption was 213.2 MB. Max. memory is 16.0 GB. [2021-06-05 00:15:48,230 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 354.4 MB. Free memory is still 334.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 00:15:48,231 INFO L168 Benchmark]: CACSL2BoogieTranslator took 481.96 ms. Allocated memory is still 354.4 MB. Free memory was 316.7 MB in the beginning and 317.2 MB in the end (delta: -556.0 kB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. [2021-06-05 00:15:48,231 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.08 ms. Allocated memory is still 354.4 MB. Free memory was 317.2 MB in the beginning and 314.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:15:48,231 INFO L168 Benchmark]: Boogie Preprocessor took 19.87 ms. Allocated memory is still 354.4 MB. Free memory was 314.5 MB in the beginning and 313.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:15:48,231 INFO L168 Benchmark]: RCFGBuilder took 496.48 ms. Allocated memory is still 354.4 MB. Free memory was 313.0 MB in the beginning and 287.9 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-05 00:15:48,232 INFO L168 Benchmark]: TraceAbstraction took 4676.40 ms. Allocated memory was 354.4 MB in the beginning and 897.6 MB in the end (delta: 543.2 MB). Free memory was 286.8 MB in the beginning and 647.3 MB in the end (delta: -360.5 MB). Peak memory consumption was 184.8 MB. Max. memory is 16.0 GB. [2021-06-05 00:15:48,233 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 354.4 MB. Free memory is still 334.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 481.96 ms. Allocated memory is still 354.4 MB. Free memory was 316.7 MB in the beginning and 317.2 MB in the end (delta: -556.0 kB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 55.08 ms. Allocated memory is still 354.4 MB. Free memory was 317.2 MB in the beginning and 314.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 19.87 ms. Allocated memory is still 354.4 MB. Free memory was 314.5 MB in the beginning and 313.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 496.48 ms. Allocated memory is still 354.4 MB. Free memory was 313.0 MB in the beginning and 287.9 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4676.40 ms. Allocated memory was 354.4 MB in the beginning and 897.6 MB in the end (delta: 543.2 MB). Free memory was 286.8 MB in the beginning and 647.3 MB in the end (delta: -360.5 MB). Peak memory consumption was 184.8 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: 4552.0ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 126.2ms, AutomataDifference: 1576.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 558.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 808 SDtfs, 1221 SDslu, 2584 SDs, 0 SdLazy, 284 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 270.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 871.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=0, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 955.6ms AutomataMinimizationTime, 8 MinimizatonAttempts, 940 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 34.0ms SsaConstructionTime, 180.0ms SatisfiabilityAnalysisTime, 913.9ms InterpolantComputationTime, 437 NumberOfCodeBlocks, 437 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 429 ConstructedInterpolants, 0 QuantifiedInterpolants, 1209 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...