/usr/bin/java -Xmx8000000000 -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/safe002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 16:48:05,139 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 16:48:05,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 16:48:05,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-09 16:48:05,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-09 16:48:05,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-09 16:48:05,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-09 16:48:05,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-09 16:48:05,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-09 16:48:05,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-09 16:48:05,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-09 16:48:05,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-09 16:48:05,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-09 16:48:05,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-09 16:48:05,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-09 16:48:05,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-09 16:48:05,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-09 16:48:05,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-09 16:48:05,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-09 16:48:05,204 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-09 16:48:05,205 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-09 16:48:05,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-09 16:48:05,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-09 16:48:05,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-09 16:48:05,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-09 16:48:05,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 16:48:05,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 16:48:05,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 16:48:05,225 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 [2021-07-09 16:48:05,258 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 16:48:05,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 16:48:05,258 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-09 16:48:05,259 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-09 16:48:05,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 16:48:05,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 16:48:05,261 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 16:48:05,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 16:48:05,262 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 16:48:05,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 16:48:05,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 16:48:05,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 16:48:05,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 16:48:05,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 16:48:05,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 16:48:05,263 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 16:48:05,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 16:48:05,264 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 16:48:05,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 16:48:05,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 16:48:05,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 16:48:05,265 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 16:48:05,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 16:48:05,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 16:48:05,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 16:48:05,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 16:48:05,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 16:48:05,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 16:48:05,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 16:48:05,266 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 16:48:05,266 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 16:48:05,266 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 16:48:05,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 16:48:05,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 16:48:05,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 16:48:05,655 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 16:48:05,656 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 16:48:05,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2021-07-09 16:48:05,721 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/884f7a16f/41a78ab4d6a04bd0b53f038719921a1a/FLAG9b33e0458 [2021-07-09 16:48:06,202 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 16:48:06,202 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2021-07-09 16:48:06,215 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/884f7a16f/41a78ab4d6a04bd0b53f038719921a1a/FLAG9b33e0458 [2021-07-09 16:48:06,545 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/884f7a16f/41a78ab4d6a04bd0b53f038719921a1a [2021-07-09 16:48:06,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 16:48:06,550 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 16:48:06,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 16:48:06,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 16:48:06,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 16:48:06,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:48:06" (1/1) ... [2021-07-09 16:48:06,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24095433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:06, skipping insertion in model container [2021-07-09 16:48:06,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:48:06" (1/1) ... [2021-07-09 16:48:06,563 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 16:48:06,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 16:48:06,740 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/safe002_tso.opt.i[949,962] [2021-07-09 16:48:06,960 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:48:06,968 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 16:48:06,978 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/safe002_tso.opt.i[949,962] [2021-07-09 16:48:07,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:48:07,058 INFO L208 MainTranslator]: Completed translation [2021-07-09 16:48:07,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:07 WrapperNode [2021-07-09 16:48:07,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 16:48:07,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 16:48:07,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 16:48:07,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 16:48:07,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:07" (1/1) ... [2021-07-09 16:48:07,096 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:07" (1/1) ... [2021-07-09 16:48:07,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 16:48:07,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 16:48:07,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 16:48:07,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 16:48:07,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:07" (1/1) ... [2021-07-09 16:48:07,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:07" (1/1) ... [2021-07-09 16:48:07,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:07" (1/1) ... [2021-07-09 16:48:07,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:07" (1/1) ... [2021-07-09 16:48:07,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:07" (1/1) ... [2021-07-09 16:48:07,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:07" (1/1) ... [2021-07-09 16:48:07,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:07" (1/1) ... [2021-07-09 16:48:07,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 16:48:07,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 16:48:07,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 16:48:07,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 16:48:07,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:07" (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 [2021-07-09 16:48:07,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 16:48:07,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-09 16:48:07,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 16:48:07,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 16:48:07,215 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-09 16:48:07,215 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-09 16:48:07,215 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-09 16:48:07,215 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-09 16:48:07,215 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-09 16:48:07,215 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-09 16:48:07,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 16:48:07,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-09 16:48:07,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 16:48:07,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 16:48:07,217 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 16:48:07,599 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 16:48:07,599 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-09 16:48:07,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:48:07 BoogieIcfgContainer [2021-07-09 16:48:07,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 16:48:07,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 16:48:07,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 16:48:07,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 16:48:07,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 04:48:06" (1/3) ... [2021-07-09 16:48:07,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a5f28cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:48:07, skipping insertion in model container [2021-07-09 16:48:07,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:07" (2/3) ... [2021-07-09 16:48:07,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a5f28cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:48:07, skipping insertion in model container [2021-07-09 16:48:07,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:48:07" (3/3) ... [2021-07-09 16:48:07,608 INFO L111 eAbstractionObserver]: Analyzing ICFG safe002_tso.opt.i [2021-07-09 16:48:07,613 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 16:48:07,613 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 16:48:07,613 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 16:48:07,614 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 16:48:07,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,643 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,643 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,644 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,644 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,646 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,646 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,646 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,646 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,648 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,648 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,648 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,648 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,648 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,648 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,649 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,649 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,649 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,649 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,651 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,652 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,652 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,652 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,657 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,657 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,657 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,657 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,659 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,660 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:07,662 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-09 16:48:07,681 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-07-09 16:48:07,697 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:48:07,698 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:48:07,698 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:48:07,698 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:48:07,698 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:48:07,698 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:48:07,698 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:48:07,698 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 16:48:07,708 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-07-09 16:48:07,899 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5559 states, 5558 states have (on average 3.4938826916156893) internal successors, (19419), 5558 states have internal predecessors, (19419), 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) [2021-07-09 16:48:07,921 INFO L276 IsEmpty]: Start isEmpty. Operand has 5559 states, 5558 states have (on average 3.4938826916156893) internal successors, (19419), 5558 states have internal predecessors, (19419), 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) [2021-07-09 16:48:07,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-07-09 16:48:07,954 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:48:07,955 INFO L508 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] [2021-07-09 16:48:07,956 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:48:07,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:48:07,960 INFO L82 PathProgramCache]: Analyzing trace with hash 663437649, now seen corresponding path program 1 times [2021-07-09 16:48:07,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:48:07,967 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075714255] [2021-07-09 16:48:07,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:48:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:48:08,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:48:08,459 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:48:08,459 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075714255] [2021-07-09 16:48:08,460 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075714255] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:48:08,460 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:48:08,460 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:48:08,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327345354] [2021-07-09 16:48:08,464 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:48:08,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:48:08,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:48:08,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:48:08,494 INFO L87 Difference]: Start difference. First operand has 5559 states, 5558 states have (on average 3.4938826916156893) internal successors, (19419), 5558 states have internal predecessors, (19419), 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) [2021-07-09 16:48:08,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:48:08,828 INFO L93 Difference]: Finished difference Result 6343 states and 21547 transitions. [2021-07-09 16:48:08,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 16:48:08,830 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 [2021-07-09 16:48:08,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:48:08,908 INFO L225 Difference]: With dead ends: 6343 [2021-07-09 16:48:08,908 INFO L226 Difference]: Without dead ends: 4628 [2021-07-09 16:48:08,909 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 240.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:48:08,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4628 states. [2021-07-09 16:48:09,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4628 to 4628. [2021-07-09 16:48:09,140 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) [2021-07-09 16:48:09,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4628 states to 4628 states and 15667 transitions. [2021-07-09 16:48:09,213 INFO L78 Accepts]: Start accepts. Automaton has 4628 states and 15667 transitions. Word has length 49 [2021-07-09 16:48:09,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:48:09,217 INFO L482 AbstractCegarLoop]: Abstraction has 4628 states and 15667 transitions. [2021-07-09 16:48:09,217 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) [2021-07-09 16:48:09,218 INFO L276 IsEmpty]: Start isEmpty. Operand 4628 states and 15667 transitions. [2021-07-09 16:48:09,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-07-09 16:48:09,226 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:48:09,226 INFO L508 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] [2021-07-09 16:48:09,227 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 16:48:09,227 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:48:09,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:48:09,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1824129874, now seen corresponding path program 1 times [2021-07-09 16:48:09,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:48:09,228 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417463192] [2021-07-09 16:48:09,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:48:09,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:48:09,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:48:09,427 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:48:09,427 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417463192] [2021-07-09 16:48:09,428 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417463192] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:48:09,428 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:48:09,428 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:48:09,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625950829] [2021-07-09 16:48:09,429 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:48:09,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:48:09,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:48:09,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:48:09,430 INFO L87 Difference]: Start difference. First operand 4628 states and 15667 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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) [2021-07-09 16:48:09,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:48:09,758 INFO L93 Difference]: Finished difference Result 7078 states and 23762 transitions. [2021-07-09 16:48:09,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:48:09,759 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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 [2021-07-09 16:48:09,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:48:09,784 INFO L225 Difference]: With dead ends: 7078 [2021-07-09 16:48:09,784 INFO L226 Difference]: Without dead ends: 3858 [2021-07-09 16:48:09,785 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 216.4ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:48:09,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3858 states. [2021-07-09 16:48:09,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3858 to 3858. [2021-07-09 16:48:09,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3858 states, 3857 states have (on average 3.3344568317345087) internal successors, (12861), 3857 states have internal predecessors, (12861), 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) [2021-07-09 16:48:09,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3858 states to 3858 states and 12861 transitions. [2021-07-09 16:48:09,956 INFO L78 Accepts]: Start accepts. Automaton has 3858 states and 12861 transitions. Word has length 51 [2021-07-09 16:48:09,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:48:09,957 INFO L482 AbstractCegarLoop]: Abstraction has 3858 states and 12861 transitions. [2021-07-09 16:48:09,957 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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) [2021-07-09 16:48:09,958 INFO L276 IsEmpty]: Start isEmpty. Operand 3858 states and 12861 transitions. [2021-07-09 16:48:09,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-07-09 16:48:09,975 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:48:09,975 INFO L508 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] [2021-07-09 16:48:09,975 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 16:48:09,976 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:48:09,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:48:09,976 INFO L82 PathProgramCache]: Analyzing trace with hash -11566213, now seen corresponding path program 1 times [2021-07-09 16:48:09,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:48:09,977 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715585403] [2021-07-09 16:48:09,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:48:10,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:48:10,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:48:10,194 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:48:10,194 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715585403] [2021-07-09 16:48:10,195 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715585403] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:48:10,195 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:48:10,195 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:48:10,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396715201] [2021-07-09 16:48:10,196 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:48:10,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:48:10,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:48:10,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:48:10,197 INFO L87 Difference]: Start difference. First operand 3858 states and 12861 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) [2021-07-09 16:48:10,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:48:10,563 INFO L93 Difference]: Finished difference Result 6098 states and 20049 transitions. [2021-07-09 16:48:10,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 16:48:10,564 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 [2021-07-09 16:48:10,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:48:10,600 INFO L225 Difference]: With dead ends: 6098 [2021-07-09 16:48:10,601 INFO L226 Difference]: Without dead ends: 4642 [2021-07-09 16:48:10,601 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 272.8ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:48:10,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4642 states. [2021-07-09 16:48:10,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4642 to 3906. [2021-07-09 16:48:10,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3906 states, 3905 states have (on average 3.2934699103713188) internal successors, (12861), 3905 states have internal predecessors, (12861), 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) [2021-07-09 16:48:10,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3906 states to 3906 states and 12861 transitions. [2021-07-09 16:48:10,750 INFO L78 Accepts]: Start accepts. Automaton has 3906 states and 12861 transitions. Word has length 54 [2021-07-09 16:48:10,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:48:10,752 INFO L482 AbstractCegarLoop]: Abstraction has 3906 states and 12861 transitions. [2021-07-09 16:48:10,752 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) [2021-07-09 16:48:10,752 INFO L276 IsEmpty]: Start isEmpty. Operand 3906 states and 12861 transitions. [2021-07-09 16:48:10,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-07-09 16:48:10,762 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:48:10,762 INFO L508 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] [2021-07-09 16:48:10,762 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 16:48:10,763 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:48:10,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:48:10,765 INFO L82 PathProgramCache]: Analyzing trace with hash -2103032967, now seen corresponding path program 1 times [2021-07-09 16:48:10,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:48:10,765 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594199634] [2021-07-09 16:48:10,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:48:10,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:48:10,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:48:10,917 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:48:10,917 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594199634] [2021-07-09 16:48:10,918 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594199634] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:48:10,918 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:48:10,918 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 16:48:10,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973316806] [2021-07-09 16:48:10,922 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 16:48:10,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:48:10,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 16:48:10,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:48:10,924 INFO L87 Difference]: Start difference. First operand 3906 states and 12861 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 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) [2021-07-09 16:48:11,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:48:11,085 INFO L93 Difference]: Finished difference Result 5306 states and 17451 transitions. [2021-07-09 16:48:11,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 16:48:11,086 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 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 [2021-07-09 16:48:11,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:48:11,114 INFO L225 Difference]: With dead ends: 5306 [2021-07-09 16:48:11,115 INFO L226 Difference]: Without dead ends: 2698 [2021-07-09 16:48:11,115 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 104.6ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:48:11,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-07-09 16:48:11,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 2698. [2021-07-09 16:48:11,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2698 states, 2697 states have (on average 3.236559139784946) internal successors, (8729), 2697 states have internal predecessors, (8729), 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) [2021-07-09 16:48:11,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2698 states to 2698 states and 8729 transitions. [2021-07-09 16:48:11,199 INFO L78 Accepts]: Start accepts. Automaton has 2698 states and 8729 transitions. Word has length 54 [2021-07-09 16:48:11,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:48:11,201 INFO L482 AbstractCegarLoop]: Abstraction has 2698 states and 8729 transitions. [2021-07-09 16:48:11,201 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 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) [2021-07-09 16:48:11,201 INFO L276 IsEmpty]: Start isEmpty. Operand 2698 states and 8729 transitions. [2021-07-09 16:48:11,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-07-09 16:48:11,210 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:48:11,210 INFO L508 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] [2021-07-09 16:48:11,211 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 16:48:11,214 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:48:11,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:48:11,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1232463540, now seen corresponding path program 1 times [2021-07-09 16:48:11,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:48:11,214 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783772789] [2021-07-09 16:48:11,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:48:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:48:11,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:48:11,306 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:48:11,306 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783772789] [2021-07-09 16:48:11,306 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783772789] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:48:11,307 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:48:11,307 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:48:11,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438889399] [2021-07-09 16:48:11,307 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:48:11,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:48:11,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:48:11,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:48:11,308 INFO L87 Difference]: Start difference. First operand 2698 states and 8729 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) [2021-07-09 16:48:11,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:48:11,473 INFO L93 Difference]: Finished difference Result 3618 states and 11675 transitions. [2021-07-09 16:48:11,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 16:48:11,474 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 [2021-07-09 16:48:11,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:48:11,480 INFO L225 Difference]: With dead ends: 3618 [2021-07-09 16:48:11,481 INFO L226 Difference]: Without dead ends: 1798 [2021-07-09 16:48:11,481 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 122.6ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:48:11,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1798 states. [2021-07-09 16:48:11,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1798 to 1798. [2021-07-09 16:48:11,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1797 states have (on average 3.132999443516973) internal successors, (5630), 1797 states have internal predecessors, (5630), 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) [2021-07-09 16:48:11,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 5630 transitions. [2021-07-09 16:48:11,528 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 5630 transitions. Word has length 56 [2021-07-09 16:48:11,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:48:11,529 INFO L482 AbstractCegarLoop]: Abstraction has 1798 states and 5630 transitions. [2021-07-09 16:48:11,529 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) [2021-07-09 16:48:11,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 5630 transitions. [2021-07-09 16:48:11,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-07-09 16:48:11,534 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:48:11,534 INFO L508 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] [2021-07-09 16:48:11,534 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 16:48:11,534 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:48:11,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:48:11,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1506580816, now seen corresponding path program 1 times [2021-07-09 16:48:11,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:48:11,535 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497479471] [2021-07-09 16:48:11,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:48:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:48:11,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:48:11,609 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:48:11,609 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497479471] [2021-07-09 16:48:11,610 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497479471] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:48:11,610 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:48:11,610 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:48:11,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918542941] [2021-07-09 16:48:11,610 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:48:11,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:48:11,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:48:11,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:48:11,611 INFO L87 Difference]: Start difference. First operand 1798 states and 5630 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) [2021-07-09 16:48:11,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:48:11,718 INFO L93 Difference]: Finished difference Result 2268 states and 7051 transitions. [2021-07-09 16:48:11,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 16:48:11,719 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 [2021-07-09 16:48:11,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:48:11,725 INFO L225 Difference]: With dead ends: 2268 [2021-07-09 16:48:11,725 INFO L226 Difference]: Without dead ends: 1676 [2021-07-09 16:48:11,726 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 85.2ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:48:11,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2021-07-09 16:48:11,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1676. [2021-07-09 16:48:11,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1676 states, 1675 states have (on average 3.114626865671642) internal successors, (5217), 1675 states have internal predecessors, (5217), 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) [2021-07-09 16:48:11,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1676 states to 1676 states and 5217 transitions. [2021-07-09 16:48:11,770 INFO L78 Accepts]: Start accepts. Automaton has 1676 states and 5217 transitions. Word has length 57 [2021-07-09 16:48:11,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:48:11,771 INFO L482 AbstractCegarLoop]: Abstraction has 1676 states and 5217 transitions. [2021-07-09 16:48:11,771 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) [2021-07-09 16:48:11,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1676 states and 5217 transitions. [2021-07-09 16:48:11,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-07-09 16:48:11,776 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:48:11,776 INFO L508 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] [2021-07-09 16:48:11,776 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-09 16:48:11,776 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:48:11,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:48:11,777 INFO L82 PathProgramCache]: Analyzing trace with hash -208209097, now seen corresponding path program 1 times [2021-07-09 16:48:11,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:48:11,777 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095392857] [2021-07-09 16:48:11,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:48:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:48:11,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:48:11,905 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:48:11,906 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095392857] [2021-07-09 16:48:11,906 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095392857] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:48:11,906 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:48:11,906 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:48:11,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776425458] [2021-07-09 16:48:11,909 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:48:11,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:48:11,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:48:11,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:48:11,910 INFO L87 Difference]: Start difference. First operand 1676 states and 5217 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) [2021-07-09 16:48:12,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:48:12,057 INFO L93 Difference]: Finished difference Result 1865 states and 5694 transitions. [2021-07-09 16:48:12,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:48:12,058 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 [2021-07-09 16:48:12,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:48:12,062 INFO L225 Difference]: With dead ends: 1865 [2021-07-09 16:48:12,063 INFO L226 Difference]: Without dead ends: 1361 [2021-07-09 16:48:12,063 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 107.5ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-07-09 16:48:12,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1361 states. [2021-07-09 16:48:12,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1361. [2021-07-09 16:48:12,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1361 states, 1360 states have (on average 3.0198529411764707) internal successors, (4107), 1360 states have internal predecessors, (4107), 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) [2021-07-09 16:48:12,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 4107 transitions. [2021-07-09 16:48:12,102 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 4107 transitions. Word has length 58 [2021-07-09 16:48:12,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:48:12,103 INFO L482 AbstractCegarLoop]: Abstraction has 1361 states and 4107 transitions. [2021-07-09 16:48:12,103 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) [2021-07-09 16:48:12,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 4107 transitions. [2021-07-09 16:48:12,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-07-09 16:48:12,107 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:48:12,107 INFO L508 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] [2021-07-09 16:48:12,107 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-09 16:48:12,107 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:48:12,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:48:12,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1700256690, now seen corresponding path program 1 times [2021-07-09 16:48:12,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:48:12,108 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064761378] [2021-07-09 16:48:12,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:48:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:48:12,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:48:12,201 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:48:12,201 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064761378] [2021-07-09 16:48:12,201 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064761378] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:48:12,201 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:48:12,201 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 16:48:12,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533308968] [2021-07-09 16:48:12,202 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 16:48:12,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:48:12,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 16:48:12,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:48:12,203 INFO L87 Difference]: Start difference. First operand 1361 states and 4107 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) [2021-07-09 16:48:12,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:48:12,351 INFO L93 Difference]: Finished difference Result 1199 states and 3504 transitions. [2021-07-09 16:48:12,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 16:48:12,352 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 [2021-07-09 16:48:12,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:48:12,355 INFO L225 Difference]: With dead ends: 1199 [2021-07-09 16:48:12,355 INFO L226 Difference]: Without dead ends: 875 [2021-07-09 16:48:12,355 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 126.8ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:48:12,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2021-07-09 16:48:12,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 875. [2021-07-09 16:48:12,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 874 states have (on average 2.845537757437071) internal successors, (2487), 874 states have internal predecessors, (2487), 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) [2021-07-09 16:48:12,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 2487 transitions. [2021-07-09 16:48:12,377 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 2487 transitions. Word has length 59 [2021-07-09 16:48:12,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:48:12,378 INFO L482 AbstractCegarLoop]: Abstraction has 875 states and 2487 transitions. [2021-07-09 16:48:12,378 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) [2021-07-09 16:48:12,378 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 2487 transitions. [2021-07-09 16:48:12,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-07-09 16:48:12,380 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:48:12,381 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:48:12,381 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-09 16:48:12,381 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:48:12,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:48:12,381 INFO L82 PathProgramCache]: Analyzing trace with hash 49969175, now seen corresponding path program 1 times [2021-07-09 16:48:12,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:48:12,382 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218829090] [2021-07-09 16:48:12,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:48:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:48:12,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:48:12,458 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:48:12,458 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218829090] [2021-07-09 16:48:12,459 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218829090] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:48:12,459 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:48:12,459 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:48:12,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089929717] [2021-07-09 16:48:12,459 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:48:12,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:48:12,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:48:12,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:48:12,460 INFO L87 Difference]: Start difference. First operand 875 states and 2487 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:48:12,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:48:12,526 INFO L93 Difference]: Finished difference Result 821 states and 2325 transitions. [2021-07-09 16:48:12,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 16:48:12,526 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-07-09 16:48:12,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:48:12,526 INFO L225 Difference]: With dead ends: 821 [2021-07-09 16:48:12,527 INFO L226 Difference]: Without dead ends: 0 [2021-07-09 16:48:12,527 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 84.5ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:48:12,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-09 16:48:12,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-09 16:48:12,527 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) [2021-07-09 16:48:12,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-09 16:48:12,528 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2021-07-09 16:48:12,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:48:12,528 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-09 16:48:12,528 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:48:12,528 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-09 16:48:12,528 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 16:48:12,528 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-09 16:48:12,530 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 16:48:12,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 04:48:12 BasicIcfg [2021-07-09 16:48:12,532 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 16:48:12,533 INFO L168 Benchmark]: Toolchain (without parser) took 5983.60 ms. Allocated memory was 184.5 MB in the beginning and 533.7 MB in the end (delta: 349.2 MB). Free memory was 148.5 MB in the beginning and 313.0 MB in the end (delta: -164.6 MB). Peak memory consumption was 184.6 MB. Max. memory is 8.0 GB. [2021-07-09 16:48:12,533 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 184.5 MB. Free memory is still 166.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 16:48:12,534 INFO L168 Benchmark]: CACSL2BoogieTranslator took 507.01 ms. Allocated memory is still 184.5 MB. Free memory was 148.3 MB in the beginning and 158.4 MB in the end (delta: -10.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-09 16:48:12,534 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.98 ms. Allocated memory is still 184.5 MB. Free memory was 158.4 MB in the beginning and 156.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-09 16:48:12,534 INFO L168 Benchmark]: Boogie Preprocessor took 32.12 ms. Allocated memory is still 184.5 MB. Free memory was 156.3 MB in the beginning and 155.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-09 16:48:12,534 INFO L168 Benchmark]: RCFGBuilder took 448.73 ms. Allocated memory is still 184.5 MB. Free memory was 155.3 MB in the beginning and 131.7 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-07-09 16:48:12,535 INFO L168 Benchmark]: TraceAbstraction took 4929.80 ms. Allocated memory was 184.5 MB in the beginning and 533.7 MB in the end (delta: 349.2 MB). Free memory was 131.2 MB in the beginning and 313.0 MB in the end (delta: -181.9 MB). Peak memory consumption was 167.8 MB. Max. memory is 8.0 GB. [2021-07-09 16:48:12,536 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 184.5 MB. Free memory is still 166.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 507.01 ms. Allocated memory is still 184.5 MB. Free memory was 148.3 MB in the beginning and 158.4 MB in the end (delta: -10.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 58.98 ms. Allocated memory is still 184.5 MB. Free memory was 158.4 MB in the beginning and 156.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.12 ms. Allocated memory is still 184.5 MB. Free memory was 156.3 MB in the beginning and 155.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 448.73 ms. Allocated memory is still 184.5 MB. Free memory was 155.3 MB in the beginning and 131.7 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4929.80 ms. Allocated memory was 184.5 MB in the beginning and 533.7 MB in the end (delta: 349.2 MB). Free memory was 131.2 MB in the beginning and 313.0 MB in the end (delta: -181.9 MB). Peak memory consumption was 167.8 MB. Max. memory is 8.0 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4833.5ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 114.5ms, AutomataDifference: 2059.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 201.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 934 SDtfs, 1374 SDslu, 3038 SDs, 0 SdLazy, 347 SolverSat, 68 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 399.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1361.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5559occurred in iteration=0, InterpolantAutomatonStates: 88, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 847.7ms AutomataMinimizationTime, 9 MinimizatonAttempts, 736 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 41.0ms SsaConstructionTime, 223.6ms SatisfiabilityAnalysisTime, 1154.9ms InterpolantComputationTime, 499 NumberOfCodeBlocks, 499 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 490 ConstructedInterpolants, 0 QuantifiedInterpolants, 1558 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...