/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-17 23:41:39,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-17 23:41:39,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-17 23:41:39,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-17 23:41:39,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-17 23:41:39,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-17 23:41:39,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-17 23:41:39,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-17 23:41:39,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-17 23:41:39,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-17 23:41:39,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-17 23:41:39,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-17 23:41:39,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-17 23:41:39,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-17 23:41:39,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-17 23:41:39,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-17 23:41:39,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-17 23:41:39,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-17 23:41:39,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-17 23:41:39,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-17 23:41:39,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-17 23:41:39,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-17 23:41:39,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-17 23:41:39,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-17 23:41:39,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-17 23:41:39,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-17 23:41:39,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-17 23:41:39,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-17 23:41:39,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-17 23:41:39,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-17 23:41:39,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-17 23:41:39,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-17 23:41:39,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-17 23:41:39,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-17 23:41:39,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-17 23:41:39,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-17 23:41:39,235 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-keepdead.epf [2020-12-17 23:41:39,280 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-17 23:41:39,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-17 23:41:39,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-17 23:41:39,282 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-17 23:41:39,283 INFO L138 SettingsManager]: * Use SBE=true [2020-12-17 23:41:39,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-17 23:41:39,283 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-17 23:41:39,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-17 23:41:39,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-17 23:41:39,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-17 23:41:39,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-17 23:41:39,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-17 23:41:39,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-17 23:41:39,285 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-17 23:41:39,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-17 23:41:39,285 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-17 23:41:39,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-17 23:41:39,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-17 23:41:39,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-17 23:41:39,286 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-17 23:41:39,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-17 23:41:39,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 23:41:39,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-17 23:41:39,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-17 23:41:39,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-17 23:41:39,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-17 23:41:39,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-17 23:41:39,288 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-17 23:41:39,288 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-17 23:41:39,288 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-17 23:41:39,288 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-17 23:41:39,288 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-17 23:41:39,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-17 23:41:39,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-17 23:41:39,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-17 23:41:39,669 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-17 23:41:39,672 INFO L275 PluginConnector]: CDTParser initialized [2020-12-17 23:41:39,673 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2020-12-17 23:41:39,768 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ef72fedf/54c4eb8e17e348a6a2fb84c3b34b548c/FLAGef7343519 [2020-12-17 23:41:40,533 INFO L306 CDTParser]: Found 1 translation units. [2020-12-17 23:41:40,544 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2020-12-17 23:41:40,564 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ef72fedf/54c4eb8e17e348a6a2fb84c3b34b548c/FLAGef7343519 [2020-12-17 23:41:40,738 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ef72fedf/54c4eb8e17e348a6a2fb84c3b34b548c [2020-12-17 23:41:40,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-17 23:41:40,743 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-17 23:41:40,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-17 23:41:40,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-17 23:41:40,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-17 23:41:40,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:41:40" (1/1) ... [2020-12-17 23:41:40,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d575a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:40, skipping insertion in model container [2020-12-17 23:41:40,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:41:40" (1/1) ... [2020-12-17 23:41:40,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-17 23:41:40,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-17 23:41:41,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:41:41,318 INFO L203 MainTranslator]: Completed pre-run [2020-12-17 23:41:41,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:41:41,521 INFO L208 MainTranslator]: Completed translation [2020-12-17 23:41:41,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:41 WrapperNode [2020-12-17 23:41:41,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-17 23:41:41,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-17 23:41:41,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-17 23:41:41,523 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-17 23:41:41,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:41" (1/1) ... [2020-12-17 23:41:41,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:41" (1/1) ... [2020-12-17 23:41:41,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-17 23:41:41,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-17 23:41:41,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-17 23:41:41,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-17 23:41:41,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:41" (1/1) ... [2020-12-17 23:41:41,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:41" (1/1) ... [2020-12-17 23:41:41,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:41" (1/1) ... [2020-12-17 23:41:41,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:41" (1/1) ... [2020-12-17 23:41:41,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:41" (1/1) ... [2020-12-17 23:41:41,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:41" (1/1) ... [2020-12-17 23:41:41,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:41" (1/1) ... [2020-12-17 23:41:41,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-17 23:41:41,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-17 23:41:41,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-17 23:41:41,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-17 23:41:41,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:41" (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 [2020-12-17 23:41:41,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-17 23:41:41,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-17 23:41:41,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-17 23:41:41,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-17 23:41:41,770 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-17 23:41:41,771 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-17 23:41:41,771 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-17 23:41:41,773 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-17 23:41:41,773 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-17 23:41:41,773 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-17 23:41:41,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-17 23:41:41,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-17 23:41:41,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-17 23:41:41,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-17 23:41:41,776 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-17 23:41:42,288 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-17 23:41:42,289 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-17 23:41:42,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:41:42 BoogieIcfgContainer [2020-12-17 23:41:42,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-17 23:41:42,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-17 23:41:42,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-17 23:41:42,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-17 23:41:42,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 11:41:40" (1/3) ... [2020-12-17 23:41:42,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad3c243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:41:42, skipping insertion in model container [2020-12-17 23:41:42,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:41:41" (2/3) ... [2020-12-17 23:41:42,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad3c243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:41:42, skipping insertion in model container [2020-12-17 23:41:42,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:41:42" (3/3) ... [2020-12-17 23:41:42,299 INFO L111 eAbstractionObserver]: Analyzing ICFG safe001_tso.oepc.i [2020-12-17 23:41:42,314 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-17 23:41:42,314 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-17 23:41:42,318 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-17 23:41:42,319 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-17 23:41:42,348 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,348 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,348 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,349 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,349 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,349 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,349 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,349 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,350 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,350 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,350 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,350 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,351 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,351 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,351 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,352 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,352 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,352 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,352 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,352 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,353 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,353 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,353 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,353 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,354 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,354 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,354 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,355 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,355 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,355 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,355 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,355 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,356 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,356 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,356 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,357 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,359 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,359 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,360 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,360 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,365 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,365 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,365 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,365 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,370 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,371 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,371 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,371 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:41:42,373 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-17 23:41:42,385 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-17 23:41:42,408 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-17 23:41:42,408 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-17 23:41:42,408 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-17 23:41:42,409 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-17 23:41:42,409 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-17 23:41:42,409 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-17 23:41:42,409 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-17 23:41:42,409 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-17 23:41:42,421 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 78 transitions, 171 flow [2020-12-17 23:41:43,262 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9847 states, 9845 states have (on average 3.614931437277806) internal successors, (35589), 9846 states have internal predecessors, (35589), 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) [2020-12-17 23:41:43,311 INFO L276 IsEmpty]: Start isEmpty. Operand has 9847 states, 9845 states have (on average 3.614931437277806) internal successors, (35589), 9846 states have internal predecessors, (35589), 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) [2020-12-17 23:41:43,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-17 23:41:43,439 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:41:43,443 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:41:43,444 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:41:43,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:41:43,451 INFO L82 PathProgramCache]: Analyzing trace with hash -578983952, now seen corresponding path program 1 times [2020-12-17 23:41:43,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:41:43,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189948693] [2020-12-17 23:41:43,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:41:43,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:41:44,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:41:44,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189948693] [2020-12-17 23:41:44,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:41:44,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:41:44,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319107633] [2020-12-17 23:41:44,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:41:44,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:41:44,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:41:44,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:41:44,069 INFO L87 Difference]: Start difference. First operand has 9847 states, 9845 states have (on average 3.614931437277806) internal successors, (35589), 9846 states have internal predecessors, (35589), 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 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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) [2020-12-17 23:41:44,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:41:44,564 INFO L93 Difference]: Finished difference Result 12199 states and 42463 transitions. [2020-12-17 23:41:44,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:41:44,573 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 41 [2020-12-17 23:41:44,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:41:44,580 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:41:44,580 INFO L78 Accepts]: Start accepts. Automaton has 12199 states and 42463 transitions. Word has length 41 [2020-12-17 23:41:44,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:41:44,587 INFO L481 AbstractCegarLoop]: Abstraction has 12199 states and 42463 transitions. [2020-12-17 23:41:44,587 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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) [2020-12-17 23:41:44,588 INFO L276 IsEmpty]: Start isEmpty. Operand 12199 states and 42463 transitions. [2020-12-17 23:41:44,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-17 23:41:44,607 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:41:44,607 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:41:44,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-17 23:41:44,607 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:41:44,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:41:44,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1808394825, now seen corresponding path program 1 times [2020-12-17 23:41:44,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:41:44,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926460146] [2020-12-17 23:41:44,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:41:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:41:44,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:41:44,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926460146] [2020-12-17 23:41:44,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:41:44,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:41:44,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114427096] [2020-12-17 23:41:44,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:41:44,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:41:44,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:41:44,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:41:44,747 INFO L87 Difference]: Start difference. First operand 12199 states and 42463 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2020-12-17 23:41:45,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:41:45,158 INFO L93 Difference]: Finished difference Result 18807 states and 65123 transitions. [2020-12-17 23:41:45,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:41:45,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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 43 [2020-12-17 23:41:45,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:41:45,162 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:41:45,162 INFO L78 Accepts]: Start accepts. Automaton has 18807 states and 65123 transitions. Word has length 43 [2020-12-17 23:41:45,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:41:45,163 INFO L481 AbstractCegarLoop]: Abstraction has 18807 states and 65123 transitions. [2020-12-17 23:41:45,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2020-12-17 23:41:45,163 INFO L276 IsEmpty]: Start isEmpty. Operand 18807 states and 65123 transitions. [2020-12-17 23:41:45,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-17 23:41:45,184 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:41:45,185 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:41:45,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-17 23:41:45,185 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:41:45,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:41:45,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1762653605, now seen corresponding path program 1 times [2020-12-17 23:41:45,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:41:45,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320674362] [2020-12-17 23:41:45,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:41:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:41:45,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:41:45,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320674362] [2020-12-17 23:41:45,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:41:45,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:41:45,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324324408] [2020-12-17 23:41:45,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:41:45,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:41:45,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:41:45,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:41:45,536 INFO L87 Difference]: Start difference. First operand 18807 states and 65123 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:41:45,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:41:45,999 INFO L93 Difference]: Finished difference Result 30143 states and 102933 transitions. [2020-12-17 23:41:46,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:41:46,000 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2020-12-17 23:41:46,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:41:46,001 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:41:46,001 INFO L78 Accepts]: Start accepts. Automaton has 30143 states and 102933 transitions. Word has length 44 [2020-12-17 23:41:46,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:41:46,004 INFO L481 AbstractCegarLoop]: Abstraction has 30143 states and 102933 transitions. [2020-12-17 23:41:46,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:41:46,004 INFO L276 IsEmpty]: Start isEmpty. Operand 30143 states and 102933 transitions. [2020-12-17 23:41:46,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-17 23:41:46,042 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:41:46,043 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:41:46,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-17 23:41:46,043 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:41:46,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:41:46,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1650393558, now seen corresponding path program 1 times [2020-12-17 23:41:46,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:41:46,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511121528] [2020-12-17 23:41:46,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:41:46,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:41:46,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:41:46,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511121528] [2020-12-17 23:41:46,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:41:46,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:41:46,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184330259] [2020-12-17 23:41:46,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:41:46,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:41:46,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:41:46,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:41:46,311 INFO L87 Difference]: Start difference. First operand 30143 states and 102933 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:41:46,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:41:46,791 INFO L93 Difference]: Finished difference Result 47423 states and 160767 transitions. [2020-12-17 23:41:46,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:41:46,792 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2020-12-17 23:41:46,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:41:46,793 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:41:46,793 INFO L78 Accepts]: Start accepts. Automaton has 47423 states and 160767 transitions. Word has length 45 [2020-12-17 23:41:46,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:41:46,794 INFO L481 AbstractCegarLoop]: Abstraction has 47423 states and 160767 transitions. [2020-12-17 23:41:46,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:41:46,794 INFO L276 IsEmpty]: Start isEmpty. Operand 47423 states and 160767 transitions. [2020-12-17 23:41:46,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-17 23:41:46,991 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:41:46,991 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:41:46,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-17 23:41:46,992 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:41:46,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:41:46,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1010838069, now seen corresponding path program 1 times [2020-12-17 23:41:47,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:41:47,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748887466] [2020-12-17 23:41:47,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:41:47,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:41:47,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:41:47,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748887466] [2020-12-17 23:41:47,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:41:47,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:41:47,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439902566] [2020-12-17 23:41:47,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:41:47,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:41:47,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:41:47,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:41:47,151 INFO L87 Difference]: Start difference. First operand 47423 states and 160767 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:41:47,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:41:47,783 INFO L93 Difference]: Finished difference Result 70459 states and 237271 transitions. [2020-12-17 23:41:47,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:41:47,783 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2020-12-17 23:41:47,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:41:47,784 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:41:47,786 INFO L78 Accepts]: Start accepts. Automaton has 70459 states and 237271 transitions. Word has length 47 [2020-12-17 23:41:47,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:41:47,786 INFO L481 AbstractCegarLoop]: Abstraction has 70459 states and 237271 transitions. [2020-12-17 23:41:47,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:41:47,786 INFO L276 IsEmpty]: Start isEmpty. Operand 70459 states and 237271 transitions. [2020-12-17 23:41:47,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-17 23:41:47,845 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:41:47,845 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:41:47,845 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-17 23:41:47,845 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:41:47,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:41:47,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1880295013, now seen corresponding path program 1 times [2020-12-17 23:41:47,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:41:47,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521380374] [2020-12-17 23:41:47,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:41:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:41:48,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:41:48,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521380374] [2020-12-17 23:41:48,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:41:48,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:41:48,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396258644] [2020-12-17 23:41:48,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:41:48,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:41:48,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:41:48,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:41:48,182 INFO L87 Difference]: Start difference. First operand 70459 states and 237271 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:41:49,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:41:49,259 INFO L93 Difference]: Finished difference Result 96235 states and 322723 transitions. [2020-12-17 23:41:49,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:41:49,259 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2020-12-17 23:41:49,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:41:49,260 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:41:49,261 INFO L78 Accepts]: Start accepts. Automaton has 96235 states and 322723 transitions. Word has length 48 [2020-12-17 23:41:49,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:41:49,262 INFO L481 AbstractCegarLoop]: Abstraction has 96235 states and 322723 transitions. [2020-12-17 23:41:49,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:41:49,262 INFO L276 IsEmpty]: Start isEmpty. Operand 96235 states and 322723 transitions. [2020-12-17 23:41:49,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-17 23:41:49,379 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:41:49,379 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:41:49,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-17 23:41:49,380 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:41:49,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:41:49,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1507471679, now seen corresponding path program 2 times [2020-12-17 23:41:49,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:41:49,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923047611] [2020-12-17 23:41:49,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:41:49,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:41:49,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:41:49,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923047611] [2020-12-17 23:41:49,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:41:49,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:41:49,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281264894] [2020-12-17 23:41:49,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:41:49,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:41:49,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:41:49,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:41:49,502 INFO L87 Difference]: Start difference. First operand 96235 states and 322723 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:41:50,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:41:50,991 INFO L93 Difference]: Finished difference Result 159835 states and 528007 transitions. [2020-12-17 23:41:50,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-17 23:41:50,992 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2020-12-17 23:41:50,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:41:50,993 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-12-17 23:41:50,993 INFO L78 Accepts]: Start accepts. Automaton has 159835 states and 528007 transitions. Word has length 48 [2020-12-17 23:41:50,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:41:50,994 INFO L481 AbstractCegarLoop]: Abstraction has 159835 states and 528007 transitions. [2020-12-17 23:41:50,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:41:50,995 INFO L276 IsEmpty]: Start isEmpty. Operand 159835 states and 528007 transitions. [2020-12-17 23:41:51,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-17 23:41:51,098 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:41:51,099 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:41:51,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-17 23:41:51,099 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:41:51,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:41:51,100 INFO L82 PathProgramCache]: Analyzing trace with hash -2067721465, now seen corresponding path program 1 times [2020-12-17 23:41:51,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:41:51,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862134529] [2020-12-17 23:41:51,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:41:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:41:51,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:41:51,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862134529] [2020-12-17 23:41:51,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:41:51,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:41:51,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190714942] [2020-12-17 23:41:51,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:41:51,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:41:51,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:41:51,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:41:51,233 INFO L87 Difference]: Start difference. First operand 159835 states and 528007 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:41:53,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:41:53,302 INFO L93 Difference]: Finished difference Result 195411 states and 644189 transitions. [2020-12-17 23:41:53,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:41:53,303 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2020-12-17 23:41:53,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:41:53,303 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:41:53,303 INFO L78 Accepts]: Start accepts. Automaton has 195411 states and 644189 transitions. Word has length 48 [2020-12-17 23:41:53,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:41:53,304 INFO L481 AbstractCegarLoop]: Abstraction has 195411 states and 644189 transitions. [2020-12-17 23:41:53,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:41:53,304 INFO L276 IsEmpty]: Start isEmpty. Operand 195411 states and 644189 transitions. [2020-12-17 23:41:53,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-17 23:41:53,473 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:41:53,473 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:41:53,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-17 23:41:53,474 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:41:53,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:41:53,474 INFO L82 PathProgramCache]: Analyzing trace with hash 608113037, now seen corresponding path program 1 times [2020-12-17 23:41:53,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:41:53,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014332269] [2020-12-17 23:41:53,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:41:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:41:53,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:41:53,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014332269] [2020-12-17 23:41:53,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:41:53,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:41:53,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244558167] [2020-12-17 23:41:53,682 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:41:53,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:41:53,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:41:53,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:41:53,685 INFO L87 Difference]: Start difference. First operand 195411 states and 644189 transitions. 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) [2020-12-17 23:41:54,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:41:54,690 INFO L93 Difference]: Finished difference Result 102902 states and 331847 transitions. [2020-12-17 23:41:54,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-17 23:41:54,691 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 [2020-12-17 23:41:54,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:41:54,693 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:41:54,697 INFO L78 Accepts]: Start accepts. Automaton has 102902 states and 331847 transitions. Word has length 49 [2020-12-17 23:41:54,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:41:54,697 INFO L481 AbstractCegarLoop]: Abstraction has 102902 states and 331847 transitions. [2020-12-17 23:41:54,698 INFO L482 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) [2020-12-17 23:41:54,698 INFO L276 IsEmpty]: Start isEmpty. Operand 102902 states and 331847 transitions. [2020-12-17 23:41:54,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-17 23:41:54,821 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:41:54,821 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:41:54,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-17 23:41:54,830 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:41:54,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:41:54,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1984353874, now seen corresponding path program 1 times [2020-12-17 23:41:54,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:41:54,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257996309] [2020-12-17 23:41:54,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:41:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:41:55,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:41:55,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257996309] [2020-12-17 23:41:55,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:41:55,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:41:55,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280655674] [2020-12-17 23:41:55,033 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:41:55,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:41:55,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:41:55,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:41:55,034 INFO L87 Difference]: Start difference. First operand 102902 states and 331847 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:41:55,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:41:55,491 INFO L93 Difference]: Finished difference Result 52904 states and 166377 transitions. [2020-12-17 23:41:55,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:41:55,491 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2020-12-17 23:41:55,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:41:55,492 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-12-17 23:41:55,492 INFO L78 Accepts]: Start accepts. Automaton has 52904 states and 166377 transitions. Word has length 50 [2020-12-17 23:41:55,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:41:55,492 INFO L481 AbstractCegarLoop]: Abstraction has 52904 states and 166377 transitions. [2020-12-17 23:41:55,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:41:55,493 INFO L276 IsEmpty]: Start isEmpty. Operand 52904 states and 166377 transitions. [2020-12-17 23:41:55,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-17 23:41:55,547 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:41:55,547 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:41:55,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-17 23:41:55,547 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:41:55,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:41:55,548 INFO L82 PathProgramCache]: Analyzing trace with hash -126840041, now seen corresponding path program 1 times [2020-12-17 23:41:55,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:41:55,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804484477] [2020-12-17 23:41:55,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:41:55,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:41:55,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:41:55,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804484477] [2020-12-17 23:41:55,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:41:55,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-17 23:41:55,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824330226] [2020-12-17 23:41:55,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-17 23:41:55,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:41:55,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-17 23:41:55,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-17 23:41:55,683 INFO L87 Difference]: Start difference. First operand 52904 states and 166377 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 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) [2020-12-17 23:41:56,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:41:56,628 INFO L93 Difference]: Finished difference Result 30881 states and 96189 transitions. [2020-12-17 23:41:56,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-17 23:41:56,632 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 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 [2020-12-17 23:41:56,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:41:56,633 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-12-17 23:41:56,633 INFO L78 Accepts]: Start accepts. Automaton has 30881 states and 96189 transitions. Word has length 51 [2020-12-17 23:41:56,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:41:56,634 INFO L481 AbstractCegarLoop]: Abstraction has 30881 states and 96189 transitions. [2020-12-17 23:41:56,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 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) [2020-12-17 23:41:56,634 INFO L276 IsEmpty]: Start isEmpty. Operand 30881 states and 96189 transitions. [2020-12-17 23:41:56,691 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-17 23:41:56,691 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-17 23:41:56,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 11:41:56 BasicIcfg [2020-12-17 23:41:56,697 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-17 23:41:56,699 INFO L168 Benchmark]: Toolchain (without parser) took 15955.39 ms. Allocated memory was 302.0 MB in the beginning and 11.4 GB in the end (delta: 11.1 GB). Free memory was 270.2 MB in the beginning and 10.1 GB in the end (delta: -9.8 GB). Peak memory consumption was 1.3 GB. Max. memory is 16.0 GB. [2020-12-17 23:41:56,700 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 302.0 MB. Free memory is still 271.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:41:56,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 776.02 ms. Allocated memory is still 302.0 MB. Free memory was 270.1 MB in the beginning and 261.8 MB in the end (delta: 8.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2020-12-17 23:41:56,708 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.06 ms. Allocated memory is still 302.0 MB. Free memory was 261.8 MB in the beginning and 259.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:41:56,709 INFO L168 Benchmark]: Boogie Preprocessor took 58.62 ms. Allocated memory is still 302.0 MB. Free memory was 259.7 MB in the beginning and 258.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:41:56,712 INFO L168 Benchmark]: RCFGBuilder took 616.44 ms. Allocated memory is still 302.0 MB. Free memory was 258.6 MB in the beginning and 234.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:41:56,717 INFO L168 Benchmark]: TraceAbstraction took 14404.31 ms. Allocated memory was 302.0 MB in the beginning and 11.4 GB in the end (delta: 11.1 GB). Free memory was 234.5 MB in the beginning and 10.1 GB in the end (delta: -9.9 GB). Peak memory consumption was 1.3 GB. Max. memory is 16.0 GB. [2020-12-17 23:41:56,724 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 302.0 MB. Free memory is still 271.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 776.02 ms. Allocated memory is still 302.0 MB. Free memory was 270.1 MB in the beginning and 261.8 MB in the end (delta: 8.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 91.06 ms. Allocated memory is still 302.0 MB. Free memory was 261.8 MB in the beginning and 259.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 58.62 ms. Allocated memory is still 302.0 MB. Free memory was 259.7 MB in the beginning and 258.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 616.44 ms. Allocated memory is still 302.0 MB. Free memory was 258.6 MB in the beginning and 234.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 14404.31 ms. Allocated memory was 302.0 MB in the beginning and 11.4 GB in the end (delta: 11.1 GB). Free memory was 234.5 MB in the beginning and 10.1 GB in the end (delta: -9.9 GB). Peak memory consumption was 1.3 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.2s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 1373 SDtfs, 2531 SDslu, 4675 SDs, 0 SdLazy, 570 SolverSat, 87 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=195411occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 514 NumberOfCodeBlocks, 514 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 503 ConstructedInterpolants, 0 QuantifiedInterpolants, 63547 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...