/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 23:37:45,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 23:37:45,782 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 23:37:45,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-21 23:37:45,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 23:37:45,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 23:37:45,853 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 23:37:45,854 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2021-05-21 23:37:45,880 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 23:37:45,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 23:37:45,881 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 23:37:45,881 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 23:37:45,883 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 23:37:45,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 23:37:45,883 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 23:37:45,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 23:37:45,883 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 23:37:45,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 23:37:45,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 23:37:45,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 23:37:45,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 23:37:45,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 23:37:45,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 23:37:45,884 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 23:37:45,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 23:37:45,884 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 23:37:45,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 23:37:45,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 23:37:45,885 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 23:37:45,885 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 23:37:45,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 23:37:45,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 23:37:45,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 23:37:45,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 23:37:45,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 23:37:45,885 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 23:37:45,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 23:37:45,885 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 23:37:45,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 23:37:45,886 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-05-21 23:37:45,886 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 23:37:46,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 23:37:46,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 23:37:46,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 23:37:46,144 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 23:37:46,144 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 23:37:46,145 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2021-05-21 23:37:46,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e375799e9/26bc91d108ff46e0aa1f8613cef9a870/FLAGc6ed853a2 [2021-05-21 23:37:46,589 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 23:37:46,590 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2021-05-21 23:37:46,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e375799e9/26bc91d108ff46e0aa1f8613cef9a870/FLAGc6ed853a2 [2021-05-21 23:37:46,923 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e375799e9/26bc91d108ff46e0aa1f8613cef9a870 [2021-05-21 23:37:46,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 23:37:46,926 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 23:37:46,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 23:37:46,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 23:37:46,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 23:37:46,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 11:37:46" (1/1) ... [2021-05-21 23:37:46,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@83d65df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:46, skipping insertion in model container [2021-05-21 23:37:46,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 11:37:46" (1/1) ... [2021-05-21 23:37:46,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 23:37:46,971 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 23:37:47,071 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i[949,962] [2021-05-21 23:37:47,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 23:37:47,176 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 23:37:47,183 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i[949,962] [2021-05-21 23:37:47,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 23:37:47,255 INFO L208 MainTranslator]: Completed translation [2021-05-21 23:37:47,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:47 WrapperNode [2021-05-21 23:37:47,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 23:37:47,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 23:37:47,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 23:37:47,256 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 23:37:47,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:47" (1/1) ... [2021-05-21 23:37:47,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:47" (1/1) ... [2021-05-21 23:37:47,296 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 23:37:47,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 23:37:47,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 23:37:47,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 23:37:47,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:47" (1/1) ... [2021-05-21 23:37:47,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:47" (1/1) ... [2021-05-21 23:37:47,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:47" (1/1) ... [2021-05-21 23:37:47,303 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:47" (1/1) ... [2021-05-21 23:37:47,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:47" (1/1) ... [2021-05-21 23:37:47,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:47" (1/1) ... [2021-05-21 23:37:47,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:47" (1/1) ... [2021-05-21 23:37:47,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 23:37:47,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 23:37:47,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 23:37:47,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 23:37:47,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 23:37:47,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 23:37:47,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-05-21 23:37:47,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 23:37:47,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 23:37:47,360 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-05-21 23:37:47,360 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-05-21 23:37:47,361 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-05-21 23:37:47,361 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-05-21 23:37:47,361 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-05-21 23:37:47,362 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-05-21 23:37:47,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 23:37:47,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-05-21 23:37:47,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 23:37:47,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 23:37:47,366 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-21 23:37:47,596 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 23:37:47,596 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-05-21 23:37:47,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 11:37:47 BoogieIcfgContainer [2021-05-21 23:37:47,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 23:37:47,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 23:37:47,599 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 23:37:47,601 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 23:37:47,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 11:37:46" (1/3) ... [2021-05-21 23:37:47,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@441f7303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 11:37:47, skipping insertion in model container [2021-05-21 23:37:47,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:47" (2/3) ... [2021-05-21 23:37:47,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@441f7303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 11:37:47, skipping insertion in model container [2021-05-21 23:37:47,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 11:37:47" (3/3) ... [2021-05-21 23:37:47,603 INFO L111 eAbstractionObserver]: Analyzing ICFG safe024_tso.opt.i [2021-05-21 23:37:47,607 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 23:37:47,607 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 23:37:47,607 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-21 23:37:47,608 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 23:37:47,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,645 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,645 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,646 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,646 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,647 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,647 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,648 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,648 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,648 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,649 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,649 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,649 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,649 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,649 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,649 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,649 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,651 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,652 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,662 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,663 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,663 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,663 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,667 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,667 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,667 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,668 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:47,675 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-05-21 23:37:47,692 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-21 23:37:47,715 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 23:37:47,715 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 23:37:47,715 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 23:37:47,715 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 23:37:47,715 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 23:37:47,715 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 23:37:47,715 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 23:37:47,715 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 23:37:47,733 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 85 transitions, 185 flow [2021-05-21 23:37:48,213 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9333 states, 9331 states have (on average 3.562104811917265) internal successors, (33238), 9332 states have internal predecessors, (33238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:48,247 INFO L276 IsEmpty]: Start isEmpty. Operand has 9333 states, 9331 states have (on average 3.562104811917265) internal successors, (33238), 9332 states have internal predecessors, (33238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:48,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-05-21 23:37:48,287 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:37:48,288 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:37:48,288 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:37:48,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:37:48,292 INFO L82 PathProgramCache]: Analyzing trace with hash -409076905, now seen corresponding path program 1 times [2021-05-21 23:37:48,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:37:48,299 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900424121] [2021-05-21 23:37:48,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:37:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:37:48,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:37:48,660 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:37:48,660 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900424121] [2021-05-21 23:37:48,661 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900424121] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:37:48,661 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:37:48,661 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:37:48,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083480105] [2021-05-21 23:37:48,665 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:37:48,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:37:48,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:37:48,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:37:48,689 INFO L87 Difference]: Start difference. First operand has 9333 states, 9331 states have (on average 3.562104811917265) internal successors, (33238), 9332 states have internal predecessors, (33238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:48,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:37:48,929 INFO L93 Difference]: Finished difference Result 12224 states and 42408 transitions. [2021-05-21 23:37:48,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:37:48,930 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-05-21 23:37:48,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:37:48,971 INFO L225 Difference]: With dead ends: 12224 [2021-05-21 23:37:48,972 INFO L226 Difference]: Without dead ends: 4629 [2021-05-21 23:37:48,973 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 115.5ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-05-21 23:37:49,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4629 states. [2021-05-21 23:37:49,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4629 to 4629. [2021-05-21 23:37:49,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4629 states, 4628 states have (on average 3.3854796888504755) internal successors, (15668), 4628 states have internal predecessors, (15668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:49,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4629 states to 4629 states and 15668 transitions. [2021-05-21 23:37:49,251 INFO L78 Accepts]: Start accepts. Automaton has 4629 states and 15668 transitions. Word has length 50 [2021-05-21 23:37:49,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:37:49,252 INFO L482 AbstractCegarLoop]: Abstraction has 4629 states and 15668 transitions. [2021-05-21 23:37:49,252 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:49,252 INFO L276 IsEmpty]: Start isEmpty. Operand 4629 states and 15668 transitions. [2021-05-21 23:37:49,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-05-21 23:37:49,259 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:37:49,260 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:37:49,260 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 23:37:49,260 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:37:49,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:37:49,261 INFO L82 PathProgramCache]: Analyzing trace with hash 109062732, now seen corresponding path program 1 times [2021-05-21 23:37:49,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:37:49,261 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824104245] [2021-05-21 23:37:49,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:37:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:37:49,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:37:49,350 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:37:49,350 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824104245] [2021-05-21 23:37:49,350 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824104245] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:37:49,350 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:37:49,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:37:49,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040537584] [2021-05-21 23:37:49,352 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:37:49,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:37:49,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:37:49,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:37:49,353 INFO L87 Difference]: Start difference. First operand 4629 states and 15668 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:49,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:37:49,551 INFO L93 Difference]: Finished difference Result 6099 states and 20484 transitions. [2021-05-21 23:37:49,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 23:37:49,551 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-05-21 23:37:49,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:37:49,567 INFO L225 Difference]: With dead ends: 6099 [2021-05-21 23:37:49,567 INFO L226 Difference]: Without dead ends: 3159 [2021-05-21 23:37:49,568 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 143.8ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-05-21 23:37:49,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2021-05-21 23:37:49,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3159. [2021-05-21 23:37:49,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3159 states, 3158 states have (on average 3.239075364154528) internal successors, (10229), 3158 states have internal predecessors, (10229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:49,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3159 states to 3159 states and 10229 transitions. [2021-05-21 23:37:49,650 INFO L78 Accepts]: Start accepts. Automaton has 3159 states and 10229 transitions. Word has length 52 [2021-05-21 23:37:49,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:37:49,651 INFO L482 AbstractCegarLoop]: Abstraction has 3159 states and 10229 transitions. [2021-05-21 23:37:49,651 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:49,651 INFO L276 IsEmpty]: Start isEmpty. Operand 3159 states and 10229 transitions. [2021-05-21 23:37:49,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-05-21 23:37:49,658 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:37:49,658 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:37:49,659 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 23:37:49,659 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:37:49,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:37:49,664 INFO L82 PathProgramCache]: Analyzing trace with hash 330168165, now seen corresponding path program 1 times [2021-05-21 23:37:49,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:37:49,664 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147804874] [2021-05-21 23:37:49,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:37:49,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:37:49,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:37:49,825 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:37:49,825 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147804874] [2021-05-21 23:37:49,825 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147804874] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:37:49,825 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:37:49,825 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:37:49,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527579798] [2021-05-21 23:37:49,826 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:37:49,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:37:49,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:37:49,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:37:49,826 INFO L87 Difference]: Start difference. First operand 3159 states and 10229 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:49,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:37:49,936 INFO L93 Difference]: Finished difference Result 3863 states and 12379 transitions. [2021-05-21 23:37:49,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:37:49,937 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-05-21 23:37:49,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:37:49,949 INFO L225 Difference]: With dead ends: 3863 [2021-05-21 23:37:49,950 INFO L226 Difference]: Without dead ends: 2911 [2021-05-21 23:37:49,950 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 106.4ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:37:49,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2021-05-21 23:37:49,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 2911. [2021-05-21 23:37:50,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2911 states, 2910 states have (on average 3.1948453608247425) internal successors, (9297), 2910 states have internal predecessors, (9297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:50,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2911 states to 2911 states and 9297 transitions. [2021-05-21 23:37:50,022 INFO L78 Accepts]: Start accepts. Automaton has 2911 states and 9297 transitions. Word has length 55 [2021-05-21 23:37:50,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:37:50,024 INFO L482 AbstractCegarLoop]: Abstraction has 2911 states and 9297 transitions. [2021-05-21 23:37:50,025 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:50,025 INFO L276 IsEmpty]: Start isEmpty. Operand 2911 states and 9297 transitions. [2021-05-21 23:37:50,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-05-21 23:37:50,029 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:37:50,029 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:37:50,029 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 23:37:50,029 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:37:50,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:37:50,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1378832078, now seen corresponding path program 1 times [2021-05-21 23:37:50,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:37:50,031 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633290367] [2021-05-21 23:37:50,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:37:50,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:37:50,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:37:50,137 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:37:50,137 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633290367] [2021-05-21 23:37:50,137 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633290367] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:37:50,138 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:37:50,138 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:37:50,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507800225] [2021-05-21 23:37:50,138 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:37:50,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:37:50,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:37:50,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:37:50,142 INFO L87 Difference]: Start difference. First operand 2911 states and 9297 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:50,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:37:50,270 INFO L93 Difference]: Finished difference Result 3001 states and 9348 transitions. [2021-05-21 23:37:50,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 23:37:50,271 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-05-21 23:37:50,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:37:50,280 INFO L225 Difference]: With dead ends: 3001 [2021-05-21 23:37:50,280 INFO L226 Difference]: Without dead ends: 2209 [2021-05-21 23:37:50,280 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 77.8ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-05-21 23:37:50,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2209 states. [2021-05-21 23:37:50,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2209 to 2209. [2021-05-21 23:37:50,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2209 states, 2208 states have (on average 3.0652173913043477) internal successors, (6768), 2208 states have internal predecessors, (6768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:50,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 6768 transitions. [2021-05-21 23:37:50,328 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 6768 transitions. Word has length 56 [2021-05-21 23:37:50,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:37:50,328 INFO L482 AbstractCegarLoop]: Abstraction has 2209 states and 6768 transitions. [2021-05-21 23:37:50,328 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:50,328 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 6768 transitions. [2021-05-21 23:37:50,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-05-21 23:37:50,332 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:37:50,332 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:37:50,332 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 23:37:50,333 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:37:50,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:37:50,333 INFO L82 PathProgramCache]: Analyzing trace with hash 323867161, now seen corresponding path program 1 times [2021-05-21 23:37:50,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:37:50,333 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773128363] [2021-05-21 23:37:50,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:37:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:37:50,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:37:50,399 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:37:50,399 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773128363] [2021-05-21 23:37:50,399 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773128363] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:37:50,399 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:37:50,400 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-21 23:37:50,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499831627] [2021-05-21 23:37:50,400 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-21 23:37:50,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:37:50,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-21 23:37:50,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-05-21 23:37:50,401 INFO L87 Difference]: Start difference. First operand 2209 states and 6768 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:50,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:37:50,524 INFO L93 Difference]: Finished difference Result 1858 states and 5535 transitions. [2021-05-21 23:37:50,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 23:37:50,525 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-05-21 23:37:50,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:37:50,533 INFO L225 Difference]: With dead ends: 1858 [2021-05-21 23:37:50,533 INFO L226 Difference]: Without dead ends: 1426 [2021-05-21 23:37:50,533 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 92.2ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-05-21 23:37:50,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2021-05-21 23:37:50,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1426. [2021-05-21 23:37:50,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1425 states have (on average 2.917894736842105) internal successors, (4158), 1425 states have internal predecessors, (4158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:50,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 4158 transitions. [2021-05-21 23:37:50,559 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 4158 transitions. Word has length 58 [2021-05-21 23:37:50,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:37:50,560 INFO L482 AbstractCegarLoop]: Abstraction has 1426 states and 4158 transitions. [2021-05-21 23:37:50,560 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:50,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 4158 transitions. [2021-05-21 23:37:50,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-05-21 23:37:50,562 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:37:50,562 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:37:50,563 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-21 23:37:50,563 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:37:50,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:37:50,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1400508759, now seen corresponding path program 1 times [2021-05-21 23:37:50,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:37:50,563 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261336873] [2021-05-21 23:37:50,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:37:50,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:37:50,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:37:50,650 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:37:50,650 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261336873] [2021-05-21 23:37:50,651 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261336873] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:37:50,651 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:37:50,651 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:37:50,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118377992] [2021-05-21 23:37:50,651 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:37:50,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:37:50,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:37:50,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:37:50,654 INFO L87 Difference]: Start difference. First operand 1426 states and 4158 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:50,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:37:50,733 INFO L93 Difference]: Finished difference Result 1909 states and 5599 transitions. [2021-05-21 23:37:50,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-21 23:37:50,734 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-05-21 23:37:50,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:37:50,746 INFO L225 Difference]: With dead ends: 1909 [2021-05-21 23:37:50,747 INFO L226 Difference]: Without dead ends: 1034 [2021-05-21 23:37:50,747 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 78.3ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:37:50,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2021-05-21 23:37:50,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 986. [2021-05-21 23:37:50,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 985 states have (on average 2.86497461928934) internal successors, (2822), 985 states have internal predecessors, (2822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:50,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 2822 transitions. [2021-05-21 23:37:50,777 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 2822 transitions. Word has length 62 [2021-05-21 23:37:50,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:37:50,777 INFO L482 AbstractCegarLoop]: Abstraction has 986 states and 2822 transitions. [2021-05-21 23:37:50,777 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:50,777 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 2822 transitions. [2021-05-21 23:37:50,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-05-21 23:37:50,779 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:37:50,779 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:37:50,780 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-21 23:37:50,780 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:37:50,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:37:50,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1018250489, now seen corresponding path program 2 times [2021-05-21 23:37:50,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:37:50,780 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692195629] [2021-05-21 23:37:50,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:37:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:37:50,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:37:50,877 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:37:50,877 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692195629] [2021-05-21 23:37:50,877 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692195629] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:37:50,877 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:37:50,877 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-21 23:37:50,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467248761] [2021-05-21 23:37:50,877 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-21 23:37:50,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:37:50,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-21 23:37:50,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-05-21 23:37:50,878 INFO L87 Difference]: Start difference. First operand 986 states and 2822 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:50,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:37:50,940 INFO L93 Difference]: Finished difference Result 1469 states and 4263 transitions. [2021-05-21 23:37:50,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-21 23:37:50,940 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-05-21 23:37:50,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:37:50,943 INFO L225 Difference]: With dead ends: 1469 [2021-05-21 23:37:50,943 INFO L226 Difference]: Without dead ends: 876 [2021-05-21 23:37:50,943 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 67.9ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-05-21 23:37:50,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2021-05-21 23:37:50,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 876. [2021-05-21 23:37:50,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 875 states have (on average 2.8434285714285714) internal successors, (2488), 875 states have internal predecessors, (2488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:50,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 2488 transitions. [2021-05-21 23:37:50,956 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 2488 transitions. Word has length 62 [2021-05-21 23:37:50,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:37:50,956 INFO L482 AbstractCegarLoop]: Abstraction has 876 states and 2488 transitions. [2021-05-21 23:37:50,956 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:50,956 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 2488 transitions. [2021-05-21 23:37:50,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-05-21 23:37:50,958 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:37:50,958 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:37:50,958 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-21 23:37:50,958 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:37:50,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:37:50,958 INFO L82 PathProgramCache]: Analyzing trace with hash -2144995453, now seen corresponding path program 3 times [2021-05-21 23:37:50,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:37:50,959 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181676568] [2021-05-21 23:37:50,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:37:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:37:51,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:37:51,012 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:37:51,012 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181676568] [2021-05-21 23:37:51,013 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181676568] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:37:51,013 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:37:51,013 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:37:51,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193818413] [2021-05-21 23:37:51,013 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:37:51,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:37:51,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:37:51,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:37:51,014 INFO L87 Difference]: Start difference. First operand 876 states and 2488 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:51,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:37:51,071 INFO L93 Difference]: Finished difference Result 822 states and 2326 transitions. [2021-05-21 23:37:51,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-21 23:37:51,071 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-05-21 23:37:51,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:37:51,071 INFO L225 Difference]: With dead ends: 822 [2021-05-21 23:37:51,071 INFO L226 Difference]: Without dead ends: 0 [2021-05-21 23:37:51,072 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 68.7ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:37:51,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-21 23:37:51,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-21 23:37:51,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:51,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-21 23:37:51,072 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2021-05-21 23:37:51,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:37:51,072 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-21 23:37:51,072 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:51,072 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-21 23:37:51,072 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 23:37:51,072 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-21 23:37:51,073 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-05-21 23:37:51,074 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-05-21 23:37:51,075 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 23:37:51,075 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 23:37:51,075 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 23:37:51,075 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 23:37:51,075 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 23:37:51,075 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 23:37:51,075 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 23:37:51,075 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-05-21 23:37:51,076 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 85 transitions, 185 flow [2021-05-21 23:37:51,346 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9333 states, 9331 states have (on average 3.562104811917265) internal successors, (33238), 9332 states have internal predecessors, (33238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:51,363 INFO L276 IsEmpty]: Start isEmpty. Operand has 9333 states, 9331 states have (on average 3.562104811917265) internal successors, (33238), 9332 states have internal predecessors, (33238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:51,394 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 23:37:51,394 INFO L315 ceAbstractionStarter]: Result for error location InUseError was SAFE (2/2) [2021-05-21 23:37:51,394 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 23:37:51,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 11:37:51 BasicIcfg [2021-05-21 23:37:51,396 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 23:37:51,397 INFO L168 Benchmark]: Toolchain (without parser) took 4471.47 ms. Allocated memory was 352.3 MB in the beginning and 838.9 MB in the end (delta: 486.5 MB). Free memory was 314.8 MB in the beginning and 541.6 MB in the end (delta: -226.9 MB). Peak memory consumption was 262.7 MB. Max. memory is 16.0 GB. [2021-05-21 23:37:51,397 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 352.3 MB. Free memory was 332.6 MB in the beginning and 332.5 MB in the end (delta: 71.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 23:37:51,397 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.12 ms. Allocated memory is still 352.3 MB. Free memory was 314.6 MB in the beginning and 314.4 MB in the end (delta: 203.1 kB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. [2021-05-21 23:37:51,398 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.13 ms. Allocated memory is still 352.3 MB. Free memory was 314.4 MB in the beginning and 312.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 23:37:51,398 INFO L168 Benchmark]: Boogie Preprocessor took 14.49 ms. Allocated memory is still 352.3 MB. Free memory was 312.5 MB in the beginning and 311.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 23:37:51,398 INFO L168 Benchmark]: RCFGBuilder took 285.99 ms. Allocated memory is still 352.3 MB. Free memory was 311.4 MB in the beginning and 286.2 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-05-21 23:37:51,398 INFO L168 Benchmark]: TraceAbstraction took 3797.67 ms. Allocated memory was 352.3 MB in the beginning and 838.9 MB in the end (delta: 486.5 MB). Free memory was 286.2 MB in the beginning and 541.6 MB in the end (delta: -255.4 MB). Peak memory consumption was 232.2 MB. Max. memory is 16.0 GB. [2021-05-21 23:37:51,399 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 352.3 MB. Free memory was 332.6 MB in the beginning and 332.5 MB in the end (delta: 71.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 327.12 ms. Allocated memory is still 352.3 MB. Free memory was 314.6 MB in the beginning and 314.4 MB in the end (delta: 203.1 kB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 40.13 ms. Allocated memory is still 352.3 MB. Free memory was 314.4 MB in the beginning and 312.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 14.49 ms. Allocated memory is still 352.3 MB. Free memory was 312.5 MB in the beginning and 311.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 285.99 ms. Allocated memory is still 352.3 MB. Free memory was 311.4 MB in the beginning and 286.2 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3797.67 ms. Allocated memory was 352.3 MB in the beginning and 838.9 MB in the end (delta: 486.5 MB). Free memory was 286.2 MB in the beginning and 541.6 MB in the end (delta: -255.4 MB). Peak memory consumption was 232.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3359.9ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 102.1ms, AutomataDifference: 1140.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 497.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 844 SDtfs, 1253 SDslu, 2980 SDs, 0 SdLazy, 300 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 205.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 751.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9333occurred in iteration=0, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 538.8ms AutomataMinimizationTime, 8 MinimizatonAttempts, 48 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 56.6ms SsaConstructionTime, 165.6ms SatisfiabilityAnalysisTime, 707.1ms InterpolantComputationTime, 457 NumberOfCodeBlocks, 457 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 449 ConstructedInterpolants, 0 QuantifiedInterpolants, 1825 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 319.2ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 47.9ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 270.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9333occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...