/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/safe019_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 10:08:30,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 10:08:30,114 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 10:08:30,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 10:08:30,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 10:08:30,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 10:08:30,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 10:08:30,185 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2021-06-05 10:08:30,209 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 10:08:30,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 10:08:30,209 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 10:08:30,209 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 10:08:30,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 10:08:30,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 10:08:30,211 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 10:08:30,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 10:08:30,211 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 10:08:30,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 10:08:30,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 10:08:30,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 10:08:30,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 10:08:30,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 10:08:30,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 10:08:30,212 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 10:08:30,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 10:08:30,212 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 10:08:30,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 10:08:30,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 10:08:30,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 10:08:30,213 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 10:08:30,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 10:08:30,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:08:30,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 10:08:30,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 10:08:30,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 10:08:30,213 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 10:08:30,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 10:08:30,213 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 10:08:30,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 10:08:30,214 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 10:08:30,214 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 10:08:30,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 10:08:30,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 10:08:30,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 10:08:30,447 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 10:08:30,447 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 10:08:30,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2021-06-05 10:08:30,491 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f84211373/88b4206133f4477f8216e7e4497d7708/FLAG7dc6c8919 [2021-06-05 10:08:30,927 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 10:08:30,927 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2021-06-05 10:08:30,939 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f84211373/88b4206133f4477f8216e7e4497d7708/FLAG7dc6c8919 [2021-06-05 10:08:30,947 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f84211373/88b4206133f4477f8216e7e4497d7708 [2021-06-05 10:08:30,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 10:08:30,950 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 10:08:30,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 10:08:30,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 10:08:30,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 10:08:30,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:08:30" (1/1) ... [2021-06-05 10:08:30,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47852ecc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:30, skipping insertion in model container [2021-06-05 10:08:30,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:08:30" (1/1) ... [2021-06-05 10:08:30,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 10:08:30,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 10:08:31,083 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/safe019_pso.opt.i[949,962] [2021-06-05 10:08:31,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:08:31,189 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 10:08:31,199 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/safe019_pso.opt.i[949,962] [2021-06-05 10:08:31,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:08:31,288 INFO L208 MainTranslator]: Completed translation [2021-06-05 10:08:31,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:31 WrapperNode [2021-06-05 10:08:31,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 10:08:31,290 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 10:08:31,290 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 10:08:31,290 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 10:08:31,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:31" (1/1) ... [2021-06-05 10:08:31,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:31" (1/1) ... [2021-06-05 10:08:31,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 10:08:31,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 10:08:31,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 10:08:31,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 10:08:31,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:31" (1/1) ... [2021-06-05 10:08:31,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:31" (1/1) ... [2021-06-05 10:08:31,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:31" (1/1) ... [2021-06-05 10:08:31,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:31" (1/1) ... [2021-06-05 10:08:31,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:31" (1/1) ... [2021-06-05 10:08:31,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:31" (1/1) ... [2021-06-05 10:08:31,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:31" (1/1) ... [2021-06-05 10:08:31,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 10:08:31,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 10:08:31,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 10:08:31,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 10:08:31,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:08:31,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 10:08:31,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 10:08:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 10:08:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 10:08:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 10:08:31,414 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 10:08:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 10:08:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 10:08:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 10:08:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 10:08:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-05 10:08:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-05 10:08:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 10:08:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 10:08:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 10:08:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 10:08:31,416 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 10:08:31,719 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 10:08:31,719 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 10:08:31,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:08:31 BoogieIcfgContainer [2021-06-05 10:08:31,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 10:08:31,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 10:08:31,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 10:08:31,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 10:08:31,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 10:08:30" (1/3) ... [2021-06-05 10:08:31,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20543f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:08:31, skipping insertion in model container [2021-06-05 10:08:31,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:31" (2/3) ... [2021-06-05 10:08:31,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20543f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:08:31, skipping insertion in model container [2021-06-05 10:08:31,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:08:31" (3/3) ... [2021-06-05 10:08:31,725 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_pso.opt.i [2021-06-05 10:08:31,730 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 10:08:31,730 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 10:08:31,730 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 10:08:31,731 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 10:08:31,759 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,760 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,760 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,760 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,760 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,760 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,760 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,760 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,761 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,761 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,761 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,761 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,761 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,761 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,761 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,761 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,761 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,762 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,762 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,762 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,763 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,763 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,763 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,763 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,763 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,764 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,764 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,764 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,764 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,764 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,765 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,765 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,765 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,765 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,765 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,765 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,765 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,765 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,765 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,766 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,766 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,766 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,766 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,766 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,766 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,767 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,767 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,767 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,769 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,769 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,770 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,770 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,773 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,774 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,775 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,775 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,776 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,776 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,778 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,778 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:31,780 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 10:08:31,795 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-05 10:08:31,815 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:08:31,815 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:08:31,815 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:08:31,815 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:08:31,815 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:08:31,815 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:08:31,815 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:08:31,815 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 10:08:31,826 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 109 places, 98 transitions, 216 flow [2021-06-05 10:08:36,025 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 51815 states, 51813 states have (on average 4.368652654739158) internal successors, (226353), 51814 states have internal predecessors, (226353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:36,112 INFO L276 IsEmpty]: Start isEmpty. Operand has 51815 states, 51813 states have (on average 4.368652654739158) internal successors, (226353), 51814 states have internal predecessors, (226353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:36,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 10:08:36,189 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:36,190 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:08:36,190 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:36,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:36,194 INFO L82 PathProgramCache]: Analyzing trace with hash -352002722, now seen corresponding path program 1 times [2021-06-05 10:08:36,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:36,199 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254245778] [2021-06-05 10:08:36,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:36,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:36,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:36,475 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:36,476 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254245778] [2021-06-05 10:08:36,476 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254245778] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:36,476 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:36,476 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:08:36,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374773842] [2021-06-05 10:08:36,479 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:08:36,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:36,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:08:36,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:08:36,556 INFO L87 Difference]: Start difference. First operand has 51815 states, 51813 states have (on average 4.368652654739158) internal successors, (226353), 51814 states have internal predecessors, (226353), 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 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:38,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:38,030 INFO L93 Difference]: Finished difference Result 117467 states and 500195 transitions. [2021-06-05 10:08:38,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:08:38,032 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-06-05 10:08:38,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:38,264 INFO L225 Difference]: With dead ends: 117467 [2021-06-05 10:08:38,264 INFO L226 Difference]: Without dead ends: 37367 [2021-06-05 10:08:38,265 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 109.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:08:38,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37367 states. [2021-06-05 10:08:39,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37367 to 31895. [2021-06-05 10:08:39,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31895 states, 31894 states have (on average 4.172916536025585) internal successors, (133091), 31894 states have internal predecessors, (133091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:39,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31895 states to 31895 states and 133091 transitions. [2021-06-05 10:08:39,789 INFO L78 Accepts]: Start accepts. Automaton has 31895 states and 133091 transitions. Word has length 56 [2021-06-05 10:08:39,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:39,790 INFO L482 AbstractCegarLoop]: Abstraction has 31895 states and 133091 transitions. [2021-06-05 10:08:39,790 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:39,790 INFO L276 IsEmpty]: Start isEmpty. Operand 31895 states and 133091 transitions. [2021-06-05 10:08:39,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 10:08:39,835 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:39,835 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:08:39,836 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 10:08:39,836 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:39,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:39,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1559850451, now seen corresponding path program 1 times [2021-06-05 10:08:39,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:39,837 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278032173] [2021-06-05 10:08:39,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:39,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:39,945 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:39,945 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278032173] [2021-06-05 10:08:39,945 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278032173] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:39,945 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:39,945 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:08:39,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536380043] [2021-06-05 10:08:39,946 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:08:39,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:39,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:08:39,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:08:39,947 INFO L87 Difference]: Start difference. First operand 31895 states and 133091 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:40,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:40,531 INFO L93 Difference]: Finished difference Result 44255 states and 182439 transitions. [2021-06-05 10:08:40,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 10:08:40,532 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-06-05 10:08:40,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:40,643 INFO L225 Difference]: With dead ends: 44255 [2021-06-05 10:08:40,643 INFO L226 Difference]: Without dead ends: 34127 [2021-06-05 10:08:40,644 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 142.8ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:08:40,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34127 states. [2021-06-05 10:08:41,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34127 to 30095. [2021-06-05 10:08:41,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30095 states, 30094 states have (on average 4.148567820828072) internal successors, (124847), 30094 states have internal predecessors, (124847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:41,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30095 states to 30095 states and 124847 transitions. [2021-06-05 10:08:41,525 INFO L78 Accepts]: Start accepts. Automaton has 30095 states and 124847 transitions. Word has length 58 [2021-06-05 10:08:41,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:41,526 INFO L482 AbstractCegarLoop]: Abstraction has 30095 states and 124847 transitions. [2021-06-05 10:08:41,526 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:41,527 INFO L276 IsEmpty]: Start isEmpty. Operand 30095 states and 124847 transitions. [2021-06-05 10:08:41,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 10:08:41,735 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:41,735 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:08:41,735 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 10:08:41,735 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:41,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:41,741 INFO L82 PathProgramCache]: Analyzing trace with hash -58694435, now seen corresponding path program 1 times [2021-06-05 10:08:41,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:41,742 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550267124] [2021-06-05 10:08:41,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:41,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:41,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:41,865 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:41,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550267124] [2021-06-05 10:08:41,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550267124] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:41,865 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:41,865 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:08:41,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854988943] [2021-06-05 10:08:41,866 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:08:41,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:41,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:08:41,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:08:41,868 INFO L87 Difference]: Start difference. First operand 30095 states and 124847 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:42,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:42,177 INFO L93 Difference]: Finished difference Result 37583 states and 154151 transitions. [2021-06-05 10:08:42,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 10:08:42,177 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-06-05 10:08:42,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:42,255 INFO L225 Difference]: With dead ends: 37583 [2021-06-05 10:08:42,255 INFO L226 Difference]: Without dead ends: 30959 [2021-06-05 10:08:42,256 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 127.2ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:08:42,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30959 states. [2021-06-05 10:08:42,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30959 to 26543. [2021-06-05 10:08:43,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26543 states, 26542 states have (on average 4.122937231557532) internal successors, (109431), 26542 states have internal predecessors, (109431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:43,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26543 states to 26543 states and 109431 transitions. [2021-06-05 10:08:43,088 INFO L78 Accepts]: Start accepts. Automaton has 26543 states and 109431 transitions. Word has length 58 [2021-06-05 10:08:43,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:43,088 INFO L482 AbstractCegarLoop]: Abstraction has 26543 states and 109431 transitions. [2021-06-05 10:08:43,088 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:43,088 INFO L276 IsEmpty]: Start isEmpty. Operand 26543 states and 109431 transitions. [2021-06-05 10:08:43,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 10:08:43,122 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:43,122 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] [2021-06-05 10:08:43,122 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 10:08:43,122 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:43,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:43,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1159192084, now seen corresponding path program 1 times [2021-06-05 10:08:43,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:43,123 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125187019] [2021-06-05 10:08:43,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:43,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:43,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:43,218 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:43,218 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125187019] [2021-06-05 10:08:43,218 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125187019] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:43,218 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:43,218 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:08:43,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094910980] [2021-06-05 10:08:43,219 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:08:43,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:43,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:08:43,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:08:43,220 INFO L87 Difference]: Start difference. First operand 26543 states and 109431 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:43,493 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-06-05 10:08:43,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:43,672 INFO L93 Difference]: Finished difference Result 43247 states and 177255 transitions. [2021-06-05 10:08:43,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 10:08:43,673 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 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 60 [2021-06-05 10:08:43,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:43,730 INFO L225 Difference]: With dead ends: 43247 [2021-06-05 10:08:43,730 INFO L226 Difference]: Without dead ends: 24348 [2021-06-05 10:08:43,731 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 254.1ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-06-05 10:08:43,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24348 states. [2021-06-05 10:08:44,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24348 to 21468. [2021-06-05 10:08:44,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21468 states, 21467 states have (on average 4.125075697582336) internal successors, (88553), 21467 states have internal predecessors, (88553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:44,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21468 states to 21468 states and 88553 transitions. [2021-06-05 10:08:44,404 INFO L78 Accepts]: Start accepts. Automaton has 21468 states and 88553 transitions. Word has length 60 [2021-06-05 10:08:44,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:44,404 INFO L482 AbstractCegarLoop]: Abstraction has 21468 states and 88553 transitions. [2021-06-05 10:08:44,405 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:44,405 INFO L276 IsEmpty]: Start isEmpty. Operand 21468 states and 88553 transitions. [2021-06-05 10:08:44,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 10:08:44,430 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:44,430 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] [2021-06-05 10:08:44,430 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 10:08:44,430 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:44,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:44,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1473270212, now seen corresponding path program 2 times [2021-06-05 10:08:44,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:44,431 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317168457] [2021-06-05 10:08:44,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:44,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:44,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:44,499 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:44,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317168457] [2021-06-05 10:08:44,499 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317168457] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:44,499 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:44,499 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:08:44,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365253495] [2021-06-05 10:08:44,499 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:08:44,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:44,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:08:44,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:08:44,500 INFO L87 Difference]: Start difference. First operand 21468 states and 88553 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:44,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:44,665 INFO L93 Difference]: Finished difference Result 23388 states and 95889 transitions. [2021-06-05 10:08:44,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:08:44,666 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 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 60 [2021-06-05 10:08:44,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:44,713 INFO L225 Difference]: With dead ends: 23388 [2021-06-05 10:08:44,713 INFO L226 Difference]: Without dead ends: 20028 [2021-06-05 10:08:44,714 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 63.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:08:44,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20028 states. [2021-06-05 10:08:45,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20028 to 20028. [2021-06-05 10:08:45,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20028 states, 20027 states have (on average 4.106506216607579) internal successors, (82241), 20027 states have internal predecessors, (82241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:45,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20028 states to 20028 states and 82241 transitions. [2021-06-05 10:08:45,249 INFO L78 Accepts]: Start accepts. Automaton has 20028 states and 82241 transitions. Word has length 60 [2021-06-05 10:08:45,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:45,249 INFO L482 AbstractCegarLoop]: Abstraction has 20028 states and 82241 transitions. [2021-06-05 10:08:45,249 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:45,249 INFO L276 IsEmpty]: Start isEmpty. Operand 20028 states and 82241 transitions. [2021-06-05 10:08:45,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 10:08:45,273 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:45,273 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] [2021-06-05 10:08:45,273 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 10:08:45,273 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:45,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:45,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1105894485, now seen corresponding path program 1 times [2021-06-05 10:08:45,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:45,274 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268981479] [2021-06-05 10:08:45,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:45,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:45,344 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:45,344 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268981479] [2021-06-05 10:08:45,345 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268981479] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:45,345 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:45,345 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:08:45,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778349127] [2021-06-05 10:08:45,345 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:08:45,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:45,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:08:45,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:08:45,348 INFO L87 Difference]: Start difference. First operand 20028 states and 82241 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:45,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:45,585 INFO L93 Difference]: Finished difference Result 32404 states and 131355 transitions. [2021-06-05 10:08:45,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 10:08:45,585 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-05 10:08:45,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:45,627 INFO L225 Difference]: With dead ends: 32404 [2021-06-05 10:08:45,627 INFO L226 Difference]: Without dead ends: 17416 [2021-06-05 10:08:45,627 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 94.5ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:08:45,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17416 states. [2021-06-05 10:08:46,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17416 to 14472. [2021-06-05 10:08:46,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14472 states, 14471 states have (on average 4.010296454978923) internal successors, (58033), 14471 states have internal predecessors, (58033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:46,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14472 states to 14472 states and 58033 transitions. [2021-06-05 10:08:46,137 INFO L78 Accepts]: Start accepts. Automaton has 14472 states and 58033 transitions. Word has length 61 [2021-06-05 10:08:46,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:46,137 INFO L482 AbstractCegarLoop]: Abstraction has 14472 states and 58033 transitions. [2021-06-05 10:08:46,137 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:46,138 INFO L276 IsEmpty]: Start isEmpty. Operand 14472 states and 58033 transitions. [2021-06-05 10:08:46,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-05 10:08:46,156 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:46,156 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, 1] [2021-06-05 10:08:46,156 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 10:08:46,156 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:46,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:46,156 INFO L82 PathProgramCache]: Analyzing trace with hash -562776384, now seen corresponding path program 1 times [2021-06-05 10:08:46,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:46,157 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678270164] [2021-06-05 10:08:46,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:46,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:46,232 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:46,232 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678270164] [2021-06-05 10:08:46,232 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678270164] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:46,232 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:46,232 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:08:46,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424773927] [2021-06-05 10:08:46,232 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:08:46,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:46,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:08:46,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:08:46,246 INFO L87 Difference]: Start difference. First operand 14472 states and 58033 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:46,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:46,426 INFO L93 Difference]: Finished difference Result 22216 states and 88433 transitions. [2021-06-05 10:08:46,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:08:46,427 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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 63 [2021-06-05 10:08:46,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:46,467 INFO L225 Difference]: With dead ends: 22216 [2021-06-05 10:08:46,467 INFO L226 Difference]: Without dead ends: 14920 [2021-06-05 10:08:46,467 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 74.2ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-05 10:08:46,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14920 states. [2021-06-05 10:08:46,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14920 to 13000. [2021-06-05 10:08:46,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13000 states, 12999 states have (on average 3.95484268020617) internal successors, (51409), 12999 states have internal predecessors, (51409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:46,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13000 states to 13000 states and 51409 transitions. [2021-06-05 10:08:46,769 INFO L78 Accepts]: Start accepts. Automaton has 13000 states and 51409 transitions. Word has length 63 [2021-06-05 10:08:46,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:46,769 INFO L482 AbstractCegarLoop]: Abstraction has 13000 states and 51409 transitions. [2021-06-05 10:08:46,769 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:46,770 INFO L276 IsEmpty]: Start isEmpty. Operand 13000 states and 51409 transitions. [2021-06-05 10:08:46,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-06-05 10:08:46,787 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:46,787 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, 1, 1] [2021-06-05 10:08:46,787 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 10:08:46,787 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:46,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:46,787 INFO L82 PathProgramCache]: Analyzing trace with hash 262666992, now seen corresponding path program 1 times [2021-06-05 10:08:46,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:46,788 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273541030] [2021-06-05 10:08:46,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:46,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:46,887 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:46,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273541030] [2021-06-05 10:08:46,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273541030] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:46,887 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:46,887 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:08:46,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354731408] [2021-06-05 10:08:46,888 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:08:46,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:46,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:08:46,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:08:46,888 INFO L87 Difference]: Start difference. First operand 13000 states and 51409 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:47,092 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2021-06-05 10:08:47,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:47,177 INFO L93 Difference]: Finished difference Result 17372 states and 68227 transitions. [2021-06-05 10:08:47,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:08:47,178 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 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 64 [2021-06-05 10:08:47,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:47,209 INFO L225 Difference]: With dead ends: 17372 [2021-06-05 10:08:47,209 INFO L226 Difference]: Without dead ends: 12636 [2021-06-05 10:08:47,210 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 215.4ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:08:47,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12636 states. [2021-06-05 10:08:47,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12636 to 12636. [2021-06-05 10:08:47,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12636 states, 12635 states have (on average 3.9381875741986545) internal successors, (49759), 12635 states have internal predecessors, (49759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:47,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12636 states to 12636 states and 49759 transitions. [2021-06-05 10:08:47,438 INFO L78 Accepts]: Start accepts. Automaton has 12636 states and 49759 transitions. Word has length 64 [2021-06-05 10:08:47,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:47,438 INFO L482 AbstractCegarLoop]: Abstraction has 12636 states and 49759 transitions. [2021-06-05 10:08:47,438 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:47,439 INFO L276 IsEmpty]: Start isEmpty. Operand 12636 states and 49759 transitions. [2021-06-05 10:08:47,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-05 10:08:47,456 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:47,456 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, 1, 1, 1] [2021-06-05 10:08:47,456 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 10:08:47,456 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:47,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:47,456 INFO L82 PathProgramCache]: Analyzing trace with hash -680334294, now seen corresponding path program 1 times [2021-06-05 10:08:47,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:47,457 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931999965] [2021-06-05 10:08:47,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:47,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:47,506 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:47,507 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931999965] [2021-06-05 10:08:47,507 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931999965] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:47,507 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:47,507 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:08:47,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347973500] [2021-06-05 10:08:47,507 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:08:47,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:47,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:08:47,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:08:47,508 INFO L87 Difference]: Start difference. First operand 12636 states and 49759 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:47,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:47,662 INFO L93 Difference]: Finished difference Result 15534 states and 60340 transitions. [2021-06-05 10:08:47,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:08:47,663 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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 65 [2021-06-05 10:08:47,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:47,687 INFO L225 Difference]: With dead ends: 15534 [2021-06-05 10:08:47,687 INFO L226 Difference]: Without dead ends: 11070 [2021-06-05 10:08:47,688 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 72.3ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 10:08:47,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11070 states. [2021-06-05 10:08:47,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11070 to 11070. [2021-06-05 10:08:47,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11070 states, 11069 states have (on average 3.8690035233535096) internal successors, (42826), 11069 states have internal predecessors, (42826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:48,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11070 states to 11070 states and 42826 transitions. [2021-06-05 10:08:48,062 INFO L78 Accepts]: Start accepts. Automaton has 11070 states and 42826 transitions. Word has length 65 [2021-06-05 10:08:48,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:48,062 INFO L482 AbstractCegarLoop]: Abstraction has 11070 states and 42826 transitions. [2021-06-05 10:08:48,062 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:48,062 INFO L276 IsEmpty]: Start isEmpty. Operand 11070 states and 42826 transitions. [2021-06-05 10:08:48,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-05 10:08:48,093 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:48,093 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, 1, 1, 1, 1] [2021-06-05 10:08:48,093 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 10:08:48,093 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:48,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:48,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1718539969, now seen corresponding path program 1 times [2021-06-05 10:08:48,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:48,101 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590192510] [2021-06-05 10:08:48,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:48,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:48,170 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:48,170 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590192510] [2021-06-05 10:08:48,172 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590192510] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:48,172 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:48,172 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:08:48,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060857547] [2021-06-05 10:08:48,173 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:08:48,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:48,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:08:48,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:08:48,173 INFO L87 Difference]: Start difference. First operand 11070 states and 42826 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:48,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:48,317 INFO L93 Difference]: Finished difference Result 11547 states and 43804 transitions. [2021-06-05 10:08:48,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 10:08:48,317 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 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 66 [2021-06-05 10:08:48,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:48,333 INFO L225 Difference]: With dead ends: 11547 [2021-06-05 10:08:48,334 INFO L226 Difference]: Without dead ends: 8163 [2021-06-05 10:08:48,334 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 76.1ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:08:48,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8163 states. [2021-06-05 10:08:48,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8163 to 8163. [2021-06-05 10:08:48,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8163 states, 8162 states have (on average 3.747733398676795) internal successors, (30589), 8162 states have internal predecessors, (30589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:48,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8163 states to 8163 states and 30589 transitions. [2021-06-05 10:08:48,464 INFO L78 Accepts]: Start accepts. Automaton has 8163 states and 30589 transitions. Word has length 66 [2021-06-05 10:08:48,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:48,464 INFO L482 AbstractCegarLoop]: Abstraction has 8163 states and 30589 transitions. [2021-06-05 10:08:48,464 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:48,465 INFO L276 IsEmpty]: Start isEmpty. Operand 8163 states and 30589 transitions. [2021-06-05 10:08:48,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-06-05 10:08:48,475 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:48,476 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, 1, 1, 1, 1, 1, 1] [2021-06-05 10:08:48,476 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 10:08:48,476 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:48,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:48,476 INFO L82 PathProgramCache]: Analyzing trace with hash 492191662, now seen corresponding path program 1 times [2021-06-05 10:08:48,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:48,476 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891601686] [2021-06-05 10:08:48,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:48,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:48,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:48,525 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:48,525 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891601686] [2021-06-05 10:08:48,525 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891601686] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:48,525 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:48,525 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:08:48,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684461828] [2021-06-05 10:08:48,525 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:08:48,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:48,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:08:48,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:08:48,526 INFO L87 Difference]: Start difference. First operand 8163 states and 30589 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:48,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:48,619 INFO L93 Difference]: Finished difference Result 11715 states and 44012 transitions. [2021-06-05 10:08:48,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 10:08:48,620 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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 68 [2021-06-05 10:08:48,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:48,635 INFO L225 Difference]: With dead ends: 11715 [2021-06-05 10:08:48,635 INFO L226 Difference]: Without dead ends: 7501 [2021-06-05 10:08:48,636 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 52.4ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:08:48,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7501 states. [2021-06-05 10:08:48,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7501 to 6853. [2021-06-05 10:08:48,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6853 states, 6852 states have (on average 3.7286923525977818) internal successors, (25549), 6852 states have internal predecessors, (25549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:48,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6853 states to 6853 states and 25549 transitions. [2021-06-05 10:08:48,747 INFO L78 Accepts]: Start accepts. Automaton has 6853 states and 25549 transitions. Word has length 68 [2021-06-05 10:08:48,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:48,747 INFO L482 AbstractCegarLoop]: Abstraction has 6853 states and 25549 transitions. [2021-06-05 10:08:48,747 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:48,747 INFO L276 IsEmpty]: Start isEmpty. Operand 6853 states and 25549 transitions. [2021-06-05 10:08:48,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-06-05 10:08:48,755 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:48,755 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, 1, 1, 1, 1, 1, 1] [2021-06-05 10:08:48,755 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 10:08:48,755 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:48,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:48,756 INFO L82 PathProgramCache]: Analyzing trace with hash 132401632, now seen corresponding path program 2 times [2021-06-05 10:08:48,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:48,756 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910263867] [2021-06-05 10:08:48,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:48,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:48,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:48,836 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:48,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910263867] [2021-06-05 10:08:48,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910263867] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:48,838 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:48,838 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 10:08:48,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057285410] [2021-06-05 10:08:48,838 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 10:08:48,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:48,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 10:08:48,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-05 10:08:48,839 INFO L87 Difference]: Start difference. First operand 6853 states and 25549 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:48,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:48,973 INFO L93 Difference]: Finished difference Result 5935 states and 21715 transitions. [2021-06-05 10:08:48,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-05 10:08:48,974 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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 68 [2021-06-05 10:08:48,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:48,980 INFO L225 Difference]: With dead ends: 5935 [2021-06-05 10:08:48,980 INFO L226 Difference]: Without dead ends: 3187 [2021-06-05 10:08:48,980 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 84.9ms TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-06-05 10:08:48,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3187 states. [2021-06-05 10:08:49,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3187 to 3187. [2021-06-05 10:08:49,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3187 states, 3186 states have (on average 3.5505335844318897) internal successors, (11312), 3186 states have internal predecessors, (11312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:49,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3187 states to 3187 states and 11312 transitions. [2021-06-05 10:08:49,128 INFO L78 Accepts]: Start accepts. Automaton has 3187 states and 11312 transitions. Word has length 68 [2021-06-05 10:08:49,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:49,128 INFO L482 AbstractCegarLoop]: Abstraction has 3187 states and 11312 transitions. [2021-06-05 10:08:49,128 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:49,128 INFO L276 IsEmpty]: Start isEmpty. Operand 3187 states and 11312 transitions. [2021-06-05 10:08:49,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-05 10:08:49,131 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:49,131 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:08:49,131 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 10:08:49,132 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:49,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:49,132 INFO L82 PathProgramCache]: Analyzing trace with hash -599850687, now seen corresponding path program 1 times [2021-06-05 10:08:49,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:49,132 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025110522] [2021-06-05 10:08:49,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:49,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:49,192 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:49,192 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025110522] [2021-06-05 10:08:49,192 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025110522] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:49,192 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:49,192 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:08:49,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578698356] [2021-06-05 10:08:49,193 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:08:49,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:49,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:08:49,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:08:49,193 INFO L87 Difference]: Start difference. First operand 3187 states and 11312 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:49,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:49,265 INFO L93 Difference]: Finished difference Result 3025 states and 10718 transitions. [2021-06-05 10:08:49,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 10:08:49,265 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 70 [2021-06-05 10:08:49,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:49,265 INFO L225 Difference]: With dead ends: 3025 [2021-06-05 10:08:49,265 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 10:08:49,265 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 69.4ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:08:49,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 10:08:49,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 10:08:49,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:49,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 10:08:49,266 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2021-06-05 10:08:49,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:49,266 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 10:08:49,266 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:49,266 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 10:08:49,266 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 10:08:49,266 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 10:08:49,267 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 10:08:49,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 10:08:49 BasicIcfg [2021-06-05 10:08:49,269 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 10:08:49,270 INFO L168 Benchmark]: Toolchain (without parser) took 18319.91 ms. Allocated memory was 369.1 MB in the beginning and 11.1 GB in the end (delta: 10.7 GB). Free memory was 331.9 MB in the beginning and 9.3 GB in the end (delta: -9.0 GB). Peak memory consumption was 1.8 GB. Max. memory is 16.0 GB. [2021-06-05 10:08:49,270 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 369.1 MB. Free memory was 350.0 MB in the beginning and 349.9 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:08:49,270 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.36 ms. Allocated memory is still 369.1 MB. Free memory was 331.7 MB in the beginning and 332.5 MB in the end (delta: -811.5 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:08:49,270 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.82 ms. Allocated memory is still 369.1 MB. Free memory was 332.5 MB in the beginning and 330.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:08:49,270 INFO L168 Benchmark]: Boogie Preprocessor took 18.18 ms. Allocated memory is still 369.1 MB. Free memory was 330.4 MB in the beginning and 329.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:08:49,270 INFO L168 Benchmark]: RCFGBuilder took 384.75 ms. Allocated memory is still 369.1 MB. Free memory was 329.4 MB in the beginning and 301.1 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-05 10:08:49,271 INFO L168 Benchmark]: TraceAbstraction took 17547.98 ms. Allocated memory was 369.1 MB in the beginning and 11.1 GB in the end (delta: 10.7 GB). Free memory was 301.1 MB in the beginning and 9.3 GB in the end (delta: -9.0 GB). Peak memory consumption was 1.8 GB. Max. memory is 16.0 GB. [2021-06-05 10:08:49,271 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 369.1 MB. Free memory was 350.0 MB in the beginning and 349.9 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 338.36 ms. Allocated memory is still 369.1 MB. Free memory was 331.7 MB in the beginning and 332.5 MB in the end (delta: -811.5 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 26.82 ms. Allocated memory is still 369.1 MB. Free memory was 332.5 MB in the beginning and 330.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 18.18 ms. Allocated memory is still 369.1 MB. Free memory was 330.4 MB in the beginning and 329.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 384.75 ms. Allocated memory is still 369.1 MB. Free memory was 329.4 MB in the beginning and 301.1 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 17547.98 ms. Allocated memory was 369.1 MB in the beginning and 11.1 GB in the end (delta: 10.7 GB). Free memory was 301.1 MB in the beginning and 9.3 GB in the end (delta: -9.0 GB). Peak memory consumption was 1.8 GB. 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 9 procedures, 127 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17453.5ms, OverallIterations: 13, TraceHistogramMax: 1, EmptinessCheckTime: 603.6ms, AutomataDifference: 5100.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4209.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1725 SDtfs, 2904 SDslu, 5798 SDs, 0 SdLazy, 646 SolverSat, 143 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 367.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 174 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1436.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=51815occurred in iteration=0, InterpolantAutomatonStates: 131, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 6239.0ms AutomataMinimizationTime, 13 MinimizatonAttempts, 22312 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 23.6ms SsaConstructionTime, 206.0ms SatisfiabilityAnalysisTime, 902.3ms InterpolantComputationTime, 817 NumberOfCodeBlocks, 817 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 804 ConstructedInterpolants, 0 QuantifiedInterpolants, 3680 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...