/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/safe024_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 10:10:17,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 10:10:17,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 10:10:18,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 10:10:18,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 10:10:18,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 10:10:18,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 10:10:18,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 10:10:18,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 10:10:18,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 10:10:18,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 10:10:18,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 10:10:18,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 10:10:18,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 10:10:18,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 10:10:18,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 10:10:18,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 10:10:18,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 10:10:18,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 10:10:18,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 10:10:18,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 10:10:18,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 10:10:18,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 10:10:18,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 10:10:18,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-05 10:10:18,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-05 10:10:18,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-05 10:10:18,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-05 10:10:18,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-05 10:10:18,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-05 10:10:18,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-05 10:10:18,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-05 10:10:18,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-05 10:10:18,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-05 10:10:18,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-05 10:10:18,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-05 10:10:18,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-05 10:10:18,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-05 10:10:18,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 10:10:18,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 10:10:18,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 10:10:18,063 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 10:10:18,090 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 10:10:18,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 10:10:18,091 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 10:10:18,091 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 10:10:18,093 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 10:10:18,093 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 10:10:18,093 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 10:10:18,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 10:10:18,093 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 10:10:18,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 10:10:18,094 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 10:10:18,094 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 10:10:18,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 10:10:18,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 10:10:18,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 10:10:18,094 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 10:10:18,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 10:10:18,094 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 10:10:18,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 10:10:18,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 10:10:18,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 10:10:18,095 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 10:10:18,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 10:10:18,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:10:18,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 10:10:18,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 10:10:18,095 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 10:10:18,095 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 10:10:18,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 10:10:18,095 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 10:10:18,095 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 10:10:18,096 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 10:10:18,096 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 10:10:18,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 10:10:18,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 10:10:18,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 10:10:18,342 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 10:10:18,342 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 10:10:18,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2021-06-05 10:10:18,388 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c5e84f83/8c1389d3d8044d88aecdb9a619d3b56b/FLAGb7ff550a3 [2021-06-05 10:10:18,812 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 10:10:18,812 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2021-06-05 10:10:18,824 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c5e84f83/8c1389d3d8044d88aecdb9a619d3b56b/FLAGb7ff550a3 [2021-06-05 10:10:19,173 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c5e84f83/8c1389d3d8044d88aecdb9a619d3b56b [2021-06-05 10:10:19,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 10:10:19,176 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 10:10:19,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 10:10:19,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 10:10:19,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 10:10:19,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:10:19" (1/1) ... [2021-06-05 10:10:19,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@edd3208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:19, skipping insertion in model container [2021-06-05 10:10:19,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:10:19" (1/1) ... [2021-06-05 10:10:19,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 10:10:19,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 10:10:19,311 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/safe024_tso.opt.i[949,962] [2021-06-05 10:10:19,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:10:19,467 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 10:10:19,475 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/safe024_tso.opt.i[949,962] [2021-06-05 10:10:19,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:10:19,560 INFO L208 MainTranslator]: Completed translation [2021-06-05 10:10:19,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:19 WrapperNode [2021-06-05 10:10:19,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 10:10:19,561 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 10:10:19,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 10:10:19,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 10:10:19,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:19" (1/1) ... [2021-06-05 10:10:19,590 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:19" (1/1) ... [2021-06-05 10:10:19,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 10:10:19,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 10:10:19,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 10:10:19,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 10:10:19,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:19" (1/1) ... [2021-06-05 10:10:19,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:19" (1/1) ... [2021-06-05 10:10:19,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:19" (1/1) ... [2021-06-05 10:10:19,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:19" (1/1) ... [2021-06-05 10:10:19,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:19" (1/1) ... [2021-06-05 10:10:19,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:19" (1/1) ... [2021-06-05 10:10:19,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:19" (1/1) ... [2021-06-05 10:10:19,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 10:10:19,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 10:10:19,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 10:10:19,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 10:10:19,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:19" (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 10:10:19,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 10:10:19,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 10:10:19,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 10:10:19,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 10:10:19,693 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 10:10:19,693 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 10:10:19,693 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 10:10:19,693 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 10:10:19,693 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 10:10:19,693 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 10:10:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 10:10:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 10:10:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 10:10:19,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 10:10:19,695 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 10:10:19,971 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 10:10:19,971 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 10:10:19,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:10:19 BoogieIcfgContainer [2021-06-05 10:10:19,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 10:10:19,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 10:10:19,973 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 10:10:19,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 10:10:19,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 10:10:19" (1/3) ... [2021-06-05 10:10:19,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@759b08a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:10:19, skipping insertion in model container [2021-06-05 10:10:19,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:19" (2/3) ... [2021-06-05 10:10:19,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@759b08a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:10:19, skipping insertion in model container [2021-06-05 10:10:19,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:10:19" (3/3) ... [2021-06-05 10:10:19,976 INFO L111 eAbstractionObserver]: Analyzing ICFG safe024_tso.opt.i [2021-06-05 10:10:19,980 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 10:10:19,980 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 10:10:19,981 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 10:10:19,981 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 10:10:20,003 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,003 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,003 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,003 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,004 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,004 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,004 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,004 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,004 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,004 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,004 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,004 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,005 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,005 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,005 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,005 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,006 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,006 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,006 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,006 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,006 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,006 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,006 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,007 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,007 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,007 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,007 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,007 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,007 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,007 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,007 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,008 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,009 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,009 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,009 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,010 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,013 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,014 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,014 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,014 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,015 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,016 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,016 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,016 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:20,017 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 10:10:20,031 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 10:10:20,044 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:10:20,044 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:10:20,044 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:10:20,044 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:10:20,044 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:10:20,044 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:10:20,044 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:10:20,045 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 10:10:20,052 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 85 transitions, 185 flow [2021-06-05 10:10:20,387 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9333 states, 9331 states have (on average 3.562104811917265) internal successors, (33238), 9332 states have internal predecessors, (33238), 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 10:10:20,422 INFO L276 IsEmpty]: Start isEmpty. Operand has 9333 states, 9331 states have (on average 3.562104811917265) internal successors, (33238), 9332 states have internal predecessors, (33238), 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 10:10:20,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-06-05 10:10:20,443 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:10:20,443 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] [2021-06-05 10:10:20,443 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:10:20,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:10:20,447 INFO L82 PathProgramCache]: Analyzing trace with hash -409076905, now seen corresponding path program 1 times [2021-06-05 10:10:20,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:10:20,455 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900504305] [2021-06-05 10:10:20,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:10:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:10:20,796 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 10:10:20,796 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:10:20,796 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900504305] [2021-06-05 10:10:20,797 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900504305] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:10:20,797 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:10:20,797 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:10:20,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842411173] [2021-06-05 10:10:20,803 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:10:20,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:10:20,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:10:20,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:10:20,836 INFO L87 Difference]: Start difference. First operand has 9333 states, 9331 states have (on average 3.562104811917265) internal successors, (33238), 9332 states have internal predecessors, (33238), 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 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:21,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:10:21,167 INFO L93 Difference]: Finished difference Result 12224 states and 42408 transitions. [2021-06-05 10:10:21,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:10:21,169 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-06-05 10:10:21,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:10:21,207 INFO L225 Difference]: With dead ends: 12224 [2021-06-05 10:10:21,208 INFO L226 Difference]: Without dead ends: 4629 [2021-06-05 10:10:21,209 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 219.3ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-05 10:10:21,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4629 states. [2021-06-05 10:10:21,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4629 to 4629. [2021-06-05 10:10:21,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4629 states, 4628 states have (on average 3.3854796888504755) internal successors, (15668), 4628 states have internal predecessors, (15668), 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 10:10:21,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4629 states to 4629 states and 15668 transitions. [2021-06-05 10:10:21,385 INFO L78 Accepts]: Start accepts. Automaton has 4629 states and 15668 transitions. Word has length 50 [2021-06-05 10:10:21,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:10:21,388 INFO L482 AbstractCegarLoop]: Abstraction has 4629 states and 15668 transitions. [2021-06-05 10:10:21,388 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:21,389 INFO L276 IsEmpty]: Start isEmpty. Operand 4629 states and 15668 transitions. [2021-06-05 10:10:21,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-06-05 10:10:21,400 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:10:21,401 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 10:10:21,401 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 10:10:21,401 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:10:21,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:10:21,403 INFO L82 PathProgramCache]: Analyzing trace with hash 109062732, now seen corresponding path program 1 times [2021-06-05 10:10:21,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:10:21,403 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189613591] [2021-06-05 10:10:21,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:10:21,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:10:21,590 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 10:10:21,590 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:10:21,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189613591] [2021-06-05 10:10:21,591 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189613591] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:10:21,591 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:10:21,591 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:10:21,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670790021] [2021-06-05 10:10:21,592 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:10:21,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:10:21,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:10:21,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:10:21,594 INFO L87 Difference]: Start difference. First operand 4629 states and 15668 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 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 10:10:21,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:10:21,821 INFO L93 Difference]: Finished difference Result 6099 states and 20484 transitions. [2021-06-05 10:10:21,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:10:21,821 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 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 10:10:21,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:10:21,835 INFO L225 Difference]: With dead ends: 6099 [2021-06-05 10:10:21,835 INFO L226 Difference]: Without dead ends: 3159 [2021-06-05 10:10:21,836 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 190.2ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 10:10:21,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2021-06-05 10:10:21,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3159. [2021-06-05 10:10:21,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3159 states, 3158 states have (on average 3.239075364154528) internal successors, (10229), 3158 states have internal predecessors, (10229), 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 10:10:21,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3159 states to 3159 states and 10229 transitions. [2021-06-05 10:10:21,916 INFO L78 Accepts]: Start accepts. Automaton has 3159 states and 10229 transitions. Word has length 52 [2021-06-05 10:10:21,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:10:21,916 INFO L482 AbstractCegarLoop]: Abstraction has 3159 states and 10229 transitions. [2021-06-05 10:10:21,916 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 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 10:10:21,916 INFO L276 IsEmpty]: Start isEmpty. Operand 3159 states and 10229 transitions. [2021-06-05 10:10:21,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-05 10:10:21,923 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:10:21,923 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 10:10:21,923 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 10:10:21,923 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:10:21,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:10:21,929 INFO L82 PathProgramCache]: Analyzing trace with hash 330168165, now seen corresponding path program 1 times [2021-06-05 10:10:21,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:10:21,929 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277768016] [2021-06-05 10:10:21,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:10:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:10:22,029 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 10:10:22,029 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:10:22,029 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277768016] [2021-06-05 10:10:22,030 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277768016] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:10:22,030 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:10:22,030 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:10:22,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787411219] [2021-06-05 10:10:22,030 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:10:22,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:10:22,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:10:22,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:10:22,031 INFO L87 Difference]: Start difference. First operand 3159 states and 10229 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:22,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:10:22,168 INFO L93 Difference]: Finished difference Result 3863 states and 12379 transitions. [2021-06-05 10:10:22,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:10:22,169 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-06-05 10:10:22,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:10:22,181 INFO L225 Difference]: With dead ends: 3863 [2021-06-05 10:10:22,181 INFO L226 Difference]: Without dead ends: 2911 [2021-06-05 10:10:22,181 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 109.2ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:10:22,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2021-06-05 10:10:22,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 2911. [2021-06-05 10:10:22,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2911 states, 2910 states have (on average 3.1948453608247425) internal successors, (9297), 2910 states have internal predecessors, (9297), 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 10:10:22,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2911 states to 2911 states and 9297 transitions. [2021-06-05 10:10:22,250 INFO L78 Accepts]: Start accepts. Automaton has 2911 states and 9297 transitions. Word has length 55 [2021-06-05 10:10:22,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:10:22,250 INFO L482 AbstractCegarLoop]: Abstraction has 2911 states and 9297 transitions. [2021-06-05 10:10:22,250 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:22,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2911 states and 9297 transitions. [2021-06-05 10:10:22,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 10:10:22,254 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:10:22,254 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 10:10:22,254 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 10:10:22,255 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:10:22,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:10:22,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1378832078, now seen corresponding path program 1 times [2021-06-05 10:10:22,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:10:22,255 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723367336] [2021-06-05 10:10:22,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:10:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:10:22,355 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 10:10:22,355 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:10:22,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723367336] [2021-06-05 10:10:22,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723367336] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:10:22,356 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:10:22,356 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:10:22,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113379170] [2021-06-05 10:10:22,356 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:10:22,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:10:22,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:10:22,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:10:22,357 INFO L87 Difference]: Start difference. First operand 2911 states and 9297 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 10:10:22,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:10:22,507 INFO L93 Difference]: Finished difference Result 3001 states and 9348 transitions. [2021-06-05 10:10:22,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:10:22,507 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 10:10:22,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:10:22,516 INFO L225 Difference]: With dead ends: 3001 [2021-06-05 10:10:22,516 INFO L226 Difference]: Without dead ends: 2209 [2021-06-05 10:10:22,516 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 126.2ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 10:10:22,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2209 states. [2021-06-05 10:10:22,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2209 to 2209. [2021-06-05 10:10:22,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2209 states, 2208 states have (on average 3.0652173913043477) internal successors, (6768), 2208 states have internal predecessors, (6768), 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 10:10:22,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 6768 transitions. [2021-06-05 10:10:22,553 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 6768 transitions. Word has length 56 [2021-06-05 10:10:22,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:10:22,554 INFO L482 AbstractCegarLoop]: Abstraction has 2209 states and 6768 transitions. [2021-06-05 10:10:22,554 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 10:10:22,554 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 6768 transitions. [2021-06-05 10:10:22,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 10:10:22,557 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:10:22,557 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 10:10:22,558 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 10:10:22,558 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:10:22,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:10:22,558 INFO L82 PathProgramCache]: Analyzing trace with hash 323867161, now seen corresponding path program 1 times [2021-06-05 10:10:22,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:10:22,558 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596542035] [2021-06-05 10:10:22,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:10:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:10:22,625 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 10:10:22,625 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:10:22,625 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596542035] [2021-06-05 10:10:22,626 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596542035] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:10:22,626 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:10:22,626 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:10:22,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689976470] [2021-06-05 10:10:22,626 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:10:22,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:10:22,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:10:22,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:10:22,627 INFO L87 Difference]: Start difference. First operand 2209 states and 6768 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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 10:10:22,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:10:22,750 INFO L93 Difference]: Finished difference Result 1858 states and 5535 transitions. [2021-06-05 10:10:22,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 10:10:22,751 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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 10:10:22,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:10:22,761 INFO L225 Difference]: With dead ends: 1858 [2021-06-05 10:10:22,761 INFO L226 Difference]: Without dead ends: 1426 [2021-06-05 10:10:22,762 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 95.2ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:10:22,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2021-06-05 10:10:22,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1426. [2021-06-05 10:10:22,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1425 states have (on average 2.917894736842105) internal successors, (4158), 1425 states have internal predecessors, (4158), 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 10:10:22,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 4158 transitions. [2021-06-05 10:10:22,784 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 4158 transitions. Word has length 58 [2021-06-05 10:10:22,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:10:22,784 INFO L482 AbstractCegarLoop]: Abstraction has 1426 states and 4158 transitions. [2021-06-05 10:10:22,810 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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 10:10:22,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 4158 transitions. [2021-06-05 10:10:22,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-05 10:10:22,812 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:10:22,812 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, 1] [2021-06-05 10:10:22,812 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 10:10:22,812 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:10:22,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:10:22,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1400508759, now seen corresponding path program 1 times [2021-06-05 10:10:22,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:10:22,813 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821549251] [2021-06-05 10:10:22,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:10:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:10:22,894 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 10:10:22,894 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:10:22,894 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821549251] [2021-06-05 10:10:22,894 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821549251] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:10:22,894 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:10:22,894 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:10:22,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690456822] [2021-06-05 10:10:22,895 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:10:22,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:10:22,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:10:22,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:10:22,898 INFO L87 Difference]: Start difference. First operand 1426 states and 4158 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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 10:10:22,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:10:22,978 INFO L93 Difference]: Finished difference Result 1909 states and 5599 transitions. [2021-06-05 10:10:22,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 10:10:22,978 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2021-06-05 10:10:22,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:10:22,985 INFO L225 Difference]: With dead ends: 1909 [2021-06-05 10:10:22,985 INFO L226 Difference]: Without dead ends: 1034 [2021-06-05 10:10:22,985 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 83.8ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:10:22,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2021-06-05 10:10:22,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 986. [2021-06-05 10:10:22,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 985 states have (on average 2.86497461928934) internal successors, (2822), 985 states have internal predecessors, (2822), 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 10:10:22,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 2822 transitions. [2021-06-05 10:10:22,999 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 2822 transitions. Word has length 62 [2021-06-05 10:10:23,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:10:23,000 INFO L482 AbstractCegarLoop]: Abstraction has 986 states and 2822 transitions. [2021-06-05 10:10:23,000 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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 10:10:23,000 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 2822 transitions. [2021-06-05 10:10:23,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-05 10:10:23,002 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:10:23,002 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, 1] [2021-06-05 10:10:23,002 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 10:10:23,002 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:10:23,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:10:23,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1018250489, now seen corresponding path program 2 times [2021-06-05 10:10:23,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:10:23,003 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849881314] [2021-06-05 10:10:23,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:10:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:10:23,087 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 10:10:23,087 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:10:23,087 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849881314] [2021-06-05 10:10:23,088 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849881314] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:10:23,088 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:10:23,088 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:10:23,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758073720] [2021-06-05 10:10:23,088 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:10:23,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:10:23,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:10:23,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:10:23,089 INFO L87 Difference]: Start difference. First operand 986 states and 2822 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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 10:10:23,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:10:23,151 INFO L93 Difference]: Finished difference Result 1469 states and 4263 transitions. [2021-06-05 10:10:23,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 10:10:23,152 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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 62 [2021-06-05 10:10:23,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:10:23,154 INFO L225 Difference]: With dead ends: 1469 [2021-06-05 10:10:23,154 INFO L226 Difference]: Without dead ends: 876 [2021-06-05 10:10:23,154 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 73.4ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-05 10:10:23,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2021-06-05 10:10:23,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 876. [2021-06-05 10:10:23,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 875 states have (on average 2.8434285714285714) internal successors, (2488), 875 states have internal predecessors, (2488), 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 10:10:23,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 2488 transitions. [2021-06-05 10:10:23,167 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 2488 transitions. Word has length 62 [2021-06-05 10:10:23,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:10:23,167 INFO L482 AbstractCegarLoop]: Abstraction has 876 states and 2488 transitions. [2021-06-05 10:10:23,167 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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 10:10:23,167 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 2488 transitions. [2021-06-05 10:10:23,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-05 10:10:23,169 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:10:23,169 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, 1] [2021-06-05 10:10:23,169 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 10:10:23,169 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:10:23,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:10:23,169 INFO L82 PathProgramCache]: Analyzing trace with hash -2144995453, now seen corresponding path program 3 times [2021-06-05 10:10:23,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:10:23,170 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440153557] [2021-06-05 10:10:23,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:10:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:10:23,245 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 10:10:23,245 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:10:23,246 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440153557] [2021-06-05 10:10:23,246 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440153557] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:10:23,246 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:10:23,246 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:10:23,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725351373] [2021-06-05 10:10:23,246 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:10:23,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:10:23,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:10:23,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:10:23,247 INFO L87 Difference]: Start difference. First operand 876 states and 2488 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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 10:10:23,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:10:23,311 INFO L93 Difference]: Finished difference Result 822 states and 2326 transitions. [2021-06-05 10:10:23,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 10:10:23,311 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2021-06-05 10:10:23,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:10:23,311 INFO L225 Difference]: With dead ends: 822 [2021-06-05 10:10:23,311 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 10:10:23,312 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 76.3ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:10:23,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 10:10:23,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 10:10:23,312 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 10:10:23,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 10:10:23,312 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2021-06-05 10:10:23,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:10:23,312 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 10:10:23,312 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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 10:10:23,312 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 10:10:23,312 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 10:10:23,313 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 10:10:23,314 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 10:10:23,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 10:10:23 BasicIcfg [2021-06-05 10:10:23,316 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 10:10:23,317 INFO L168 Benchmark]: Toolchain (without parser) took 4140.59 ms. Allocated memory was 358.6 MB in the beginning and 482.3 MB in the end (delta: 123.7 MB). Free memory was 320.8 MB in the beginning and 276.2 MB in the end (delta: 44.6 MB). Peak memory consumption was 168.9 MB. Max. memory is 16.0 GB. [2021-06-05 10:10:23,317 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 358.6 MB. Free memory is still 338.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:10:23,320 INFO L168 Benchmark]: CACSL2BoogieTranslator took 383.28 ms. Allocated memory is still 358.6 MB. Free memory was 320.6 MB in the beginning and 320.2 MB in the end (delta: 342.6 kB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. [2021-06-05 10:10:23,322 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.34 ms. Allocated memory is still 358.6 MB. Free memory was 320.2 MB in the beginning and 318.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:10:23,324 INFO L168 Benchmark]: Boogie Preprocessor took 32.99 ms. Allocated memory is still 358.6 MB. Free memory was 318.1 MB in the beginning and 317.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:10:23,324 INFO L168 Benchmark]: RCFGBuilder took 332.44 ms. Allocated memory is still 358.6 MB. Free memory was 317.1 MB in the beginning and 290.9 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-05 10:10:23,325 INFO L168 Benchmark]: TraceAbstraction took 3342.79 ms. Allocated memory was 358.6 MB in the beginning and 482.3 MB in the end (delta: 123.7 MB). Free memory was 290.9 MB in the beginning and 276.2 MB in the end (delta: 14.7 MB). Peak memory consumption was 140.5 MB. Max. memory is 16.0 GB. [2021-06-05 10:10:23,328 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 358.6 MB. Free memory is still 338.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 383.28 ms. Allocated memory is still 358.6 MB. Free memory was 320.6 MB in the beginning and 320.2 MB in the end (delta: 342.6 kB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 44.34 ms. Allocated memory is still 358.6 MB. Free memory was 320.2 MB in the beginning and 318.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.99 ms. Allocated memory is still 358.6 MB. Free memory was 318.1 MB in the beginning and 317.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 332.44 ms. Allocated memory is still 358.6 MB. Free memory was 317.1 MB in the beginning and 290.9 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3342.79 ms. Allocated memory was 358.6 MB in the beginning and 482.3 MB in the end (delta: 123.7 MB). Free memory was 290.9 MB in the beginning and 276.2 MB in the end (delta: 14.7 MB). Peak memory consumption was 140.5 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, 108 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3270.6ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 86.4ms, AutomataDifference: 1315.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 342.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 844 SDtfs, 1253 SDslu, 2980 SDs, 0 SdLazy, 300 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 224.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 973.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9333occurred in iteration=0, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 399.2ms AutomataMinimizationTime, 8 MinimizatonAttempts, 48 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 25.1ms SsaConstructionTime, 149.3ms SatisfiabilityAnalysisTime, 776.2ms InterpolantComputationTime, 457 NumberOfCodeBlocks, 457 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 449 ConstructedInterpolants, 0 QuantifiedInterpolants, 1825 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...