/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 00:09:46,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 00:09:46,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 00:09:46,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 00:09:46,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 00:09:46,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 00:09:46,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 00:09:46,124 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-05 00:09:46,151 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 00:09:46,151 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 00:09:46,151 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 00:09:46,151 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 00:09:46,153 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 00:09:46,153 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 00:09:46,153 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 00:09:46,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 00:09:46,154 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 00:09:46,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 00:09:46,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 00:09:46,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 00:09:46,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 00:09:46,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 00:09:46,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 00:09:46,155 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 00:09:46,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 00:09:46,155 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 00:09:46,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 00:09:46,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 00:09:46,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 00:09:46,155 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 00:09:46,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 00:09:46,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 00:09:46,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 00:09:46,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 00:09:46,156 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 00:09:46,156 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 00:09:46,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 00:09:46,156 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 00:09:46,156 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 00:09:46,156 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 00:09:46,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 00:09:46,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 00:09:46,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 00:09:46,418 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 00:09:46,419 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 00:09:46,420 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i [2021-06-05 00:09:46,468 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0027fd0bf/109ef5daaccf48738edd3f1914acce1f/FLAGd7df1983d [2021-06-05 00:09:46,876 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 00:09:46,877 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i [2021-06-05 00:09:46,889 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0027fd0bf/109ef5daaccf48738edd3f1914acce1f/FLAGd7df1983d [2021-06-05 00:09:47,217 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0027fd0bf/109ef5daaccf48738edd3f1914acce1f [2021-06-05 00:09:47,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 00:09:47,220 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 00:09:47,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 00:09:47,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 00:09:47,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 00:09:47,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:09:47" (1/1) ... [2021-06-05 00:09:47,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@634be15c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:47, skipping insertion in model container [2021-06-05 00:09:47,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:09:47" (1/1) ... [2021-06-05 00:09:47,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 00:09:47,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 00:09:47,359 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/safe001_tso.opt.i[949,962] [2021-06-05 00:09:47,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:09:47,511 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 00:09:47,541 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/safe001_tso.opt.i[949,962] [2021-06-05 00:09:47,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:09:47,639 INFO L208 MainTranslator]: Completed translation [2021-06-05 00:09:47,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:47 WrapperNode [2021-06-05 00:09:47,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 00:09:47,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 00:09:47,641 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 00:09:47,641 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 00:09:47,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:47" (1/1) ... [2021-06-05 00:09:47,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:47" (1/1) ... [2021-06-05 00:09:47,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 00:09:47,691 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 00:09:47,691 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 00:09:47,691 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 00:09:47,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:47" (1/1) ... [2021-06-05 00:09:47,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:47" (1/1) ... [2021-06-05 00:09:47,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:47" (1/1) ... [2021-06-05 00:09:47,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:47" (1/1) ... [2021-06-05 00:09:47,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:47" (1/1) ... [2021-06-05 00:09:47,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:47" (1/1) ... [2021-06-05 00:09:47,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:47" (1/1) ... [2021-06-05 00:09:47,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 00:09:47,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 00:09:47,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 00:09:47,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 00:09:47,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 00:09:47,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 00:09:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 00:09:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 00:09:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 00:09:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 00:09:47,778 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 00:09:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 00:09:47,778 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 00:09:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 00:09:47,778 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 00:09:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 00:09:47,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 00:09:47,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 00:09:47,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 00:09:47,780 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 00:09:48,096 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 00:09:48,097 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 00:09:48,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:09:48 BoogieIcfgContainer [2021-06-05 00:09:48,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 00:09:48,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 00:09:48,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 00:09:48,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 00:09:48,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 12:09:47" (1/3) ... [2021-06-05 00:09:48,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39835f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:09:48, skipping insertion in model container [2021-06-05 00:09:48,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:47" (2/3) ... [2021-06-05 00:09:48,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39835f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:09:48, skipping insertion in model container [2021-06-05 00:09:48,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:09:48" (3/3) ... [2021-06-05 00:09:48,103 INFO L111 eAbstractionObserver]: Analyzing ICFG safe001_tso.opt.i [2021-06-05 00:09:48,107 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 00:09:48,107 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 00:09:48,108 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 00:09:48,108 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 00:09:48,140 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,141 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,141 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,141 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,141 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,141 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,141 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,141 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,142 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,142 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,142 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,142 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,144 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,144 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,144 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,144 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,145 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,145 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,145 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,146 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,146 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,146 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,147 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,147 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,151 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,151 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,151 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,151 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,151 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,151 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,151 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,152 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,152 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,152 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,153 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,153 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,154 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,155 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,155 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,155 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,162 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,162 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,162 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,162 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,165 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,165 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,165 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,165 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:48,169 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 00:09:48,184 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 00:09:48,206 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 00:09:48,206 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 00:09:48,206 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 00:09:48,206 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 00:09:48,206 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 00:09:48,206 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 00:09:48,206 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 00:09:48,206 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 00:09:48,218 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 91 places, 83 transitions, 181 flow [2021-06-05 00:09:48,643 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 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 00:09:48,674 INFO L276 IsEmpty]: Start isEmpty. Operand has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 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 00:09:48,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-05 00:09:48,699 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:09:48,699 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] [2021-06-05 00:09:48,699 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:09:48,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:09:48,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1833038261, now seen corresponding path program 1 times [2021-06-05 00:09:48,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:09:48,710 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100358471] [2021-06-05 00:09:48,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:09:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:09:49,094 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 00:09:49,095 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:09:49,095 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100358471] [2021-06-05 00:09:49,096 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100358471] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:09:49,096 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:09:49,097 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:09:49,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826067783] [2021-06-05 00:09:49,102 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:09:49,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:09:49,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:09:49,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:09:49,131 INFO L87 Difference]: Start difference. First operand has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:09:49,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:09:49,531 INFO L93 Difference]: Finished difference Result 18825 states and 64659 transitions. [2021-06-05 00:09:49,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 00:09:49,532 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-06-05 00:09:49,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:09:49,652 INFO L225 Difference]: With dead ends: 18825 [2021-06-05 00:09:49,664 INFO L226 Difference]: Without dead ends: 6227 [2021-06-05 00:09:49,665 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 207.8ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:09:49,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6227 states. [2021-06-05 00:09:49,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6227 to 5219. [2021-06-05 00:09:49,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 3.3217707934074356) internal successors, (17333), 5218 states have internal predecessors, (17333), 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 00:09:49,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 17333 transitions. [2021-06-05 00:09:49,916 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 17333 transitions. Word has length 48 [2021-06-05 00:09:49,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:09:49,919 INFO L482 AbstractCegarLoop]: Abstraction has 5219 states and 17333 transitions. [2021-06-05 00:09:49,919 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:09:49,919 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 17333 transitions. [2021-06-05 00:09:49,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 00:09:49,935 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:09:49,935 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] [2021-06-05 00:09:49,935 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 00:09:49,935 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:09:49,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:09:49,937 INFO L82 PathProgramCache]: Analyzing trace with hash -875734650, now seen corresponding path program 1 times [2021-06-05 00:09:49,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:09:49,937 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047995724] [2021-06-05 00:09:49,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:09:49,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:09:50,066 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 00:09:50,067 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:09:50,067 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047995724] [2021-06-05 00:09:50,067 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047995724] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:09:50,067 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:09:50,067 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 00:09:50,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989908497] [2021-06-05 00:09:50,068 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 00:09:50,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:09:50,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 00:09:50,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:09:50,069 INFO L87 Difference]: Start difference. First operand 5219 states and 17333 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:09:50,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:09:50,300 INFO L93 Difference]: Finished difference Result 7065 states and 23157 transitions. [2021-06-05 00:09:50,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 00:09:50,300 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-06-05 00:09:50,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:09:50,316 INFO L225 Difference]: With dead ends: 7065 [2021-06-05 00:09:50,316 INFO L226 Difference]: Without dead ends: 3525 [2021-06-05 00:09:50,317 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 106.5ms TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:09:50,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3525 states. [2021-06-05 00:09:50,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3525 to 3141. [2021-06-05 00:09:50,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3141 states, 3140 states have (on average 3.190764331210191) internal successors, (10019), 3140 states have internal predecessors, (10019), 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 00:09:50,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3141 states to 3141 states and 10019 transitions. [2021-06-05 00:09:50,443 INFO L78 Accepts]: Start accepts. Automaton has 3141 states and 10019 transitions. Word has length 51 [2021-06-05 00:09:50,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:09:50,443 INFO L482 AbstractCegarLoop]: Abstraction has 3141 states and 10019 transitions. [2021-06-05 00:09:50,443 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:09:50,443 INFO L276 IsEmpty]: Start isEmpty. Operand 3141 states and 10019 transitions. [2021-06-05 00:09:50,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 00:09:50,451 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:09:50,451 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] [2021-06-05 00:09:50,451 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 00:09:50,451 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:09:50,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:09:50,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1477862989, now seen corresponding path program 1 times [2021-06-05 00:09:50,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:09:50,457 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988579704] [2021-06-05 00:09:50,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:09:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:09:50,559 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 00:09:50,559 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:09:50,559 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988579704] [2021-06-05 00:09:50,559 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988579704] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:09:50,560 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:09:50,560 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:09:50,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922487995] [2021-06-05 00:09:50,560 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:09:50,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:09:50,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:09:50,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:09:50,561 INFO L87 Difference]: Start difference. First operand 3141 states and 10019 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:09:50,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:09:50,640 INFO L93 Difference]: Finished difference Result 3397 states and 10771 transitions. [2021-06-05 00:09:50,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:09:50,641 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-06-05 00:09:50,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:09:50,653 INFO L225 Difference]: With dead ends: 3397 [2021-06-05 00:09:50,653 INFO L226 Difference]: Without dead ends: 2949 [2021-06-05 00:09:50,653 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 70.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:09:50,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2949 states. [2021-06-05 00:09:50,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2949 to 2949. [2021-06-05 00:09:50,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2949 states, 2948 states have (on average 3.1706241519674356) internal successors, (9347), 2948 states have internal predecessors, (9347), 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 00:09:50,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2949 states to 2949 states and 9347 transitions. [2021-06-05 00:09:50,716 INFO L78 Accepts]: Start accepts. Automaton has 2949 states and 9347 transitions. Word has length 54 [2021-06-05 00:09:50,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:09:50,718 INFO L482 AbstractCegarLoop]: Abstraction has 2949 states and 9347 transitions. [2021-06-05 00:09:50,718 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:09:50,718 INFO L276 IsEmpty]: Start isEmpty. Operand 2949 states and 9347 transitions. [2021-06-05 00:09:50,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-05 00:09:50,723 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:09:50,723 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:09:50,723 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 00:09:50,723 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:09:50,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:09:50,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1305438726, now seen corresponding path program 1 times [2021-06-05 00:09:50,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:09:50,725 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702742379] [2021-06-05 00:09:50,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:09:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:09:50,839 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 00:09:50,839 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:09:50,839 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702742379] [2021-06-05 00:09:50,839 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702742379] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:09:50,840 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:09:50,840 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:09:50,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473976045] [2021-06-05 00:09:50,843 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:09:50,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:09:50,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:09:50,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:09:50,843 INFO L87 Difference]: Start difference. First operand 2949 states and 9347 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:09:51,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:09:51,033 INFO L93 Difference]: Finished difference Result 3961 states and 12410 transitions. [2021-06-05 00:09:51,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 00:09:51,033 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-06-05 00:09:51,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:09:51,055 INFO L225 Difference]: With dead ends: 3961 [2021-06-05 00:09:51,055 INFO L226 Difference]: Without dead ends: 3305 [2021-06-05 00:09:51,055 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 127.0ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:09:51,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3305 states. [2021-06-05 00:09:51,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3305 to 2797. [2021-06-05 00:09:51,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 2796 states have (on average 3.1548640915593706) internal successors, (8821), 2796 states have internal predecessors, (8821), 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 00:09:51,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 8821 transitions. [2021-06-05 00:09:51,112 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 8821 transitions. Word has length 55 [2021-06-05 00:09:51,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:09:51,114 INFO L482 AbstractCegarLoop]: Abstraction has 2797 states and 8821 transitions. [2021-06-05 00:09:51,114 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:09:51,114 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 8821 transitions. [2021-06-05 00:09:51,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 00:09:51,120 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:09:51,120 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 00:09:51,121 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 00:09:51,123 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:09:51,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:09:51,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1495849580, now seen corresponding path program 1 times [2021-06-05 00:09:51,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:09:51,124 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914127551] [2021-06-05 00:09:51,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:09:51,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:09:51,246 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 00:09:51,246 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:09:51,246 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914127551] [2021-06-05 00:09:51,246 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914127551] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:09:51,246 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:09:51,246 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 00:09:51,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188808249] [2021-06-05 00:09:51,247 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 00:09:51,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:09:51,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 00:09:51,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:09:51,249 INFO L87 Difference]: Start difference. First operand 2797 states and 8821 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 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 00:09:51,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:09:51,328 INFO L93 Difference]: Finished difference Result 4793 states and 15082 transitions. [2021-06-05 00:09:51,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 00:09:51,328 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 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 00:09:51,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:09:51,336 INFO L225 Difference]: With dead ends: 4793 [2021-06-05 00:09:51,336 INFO L226 Difference]: Without dead ends: 2833 [2021-06-05 00:09:51,336 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 77.1ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-06-05 00:09:51,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2833 states. [2021-06-05 00:09:51,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2833 to 2417. [2021-06-05 00:09:51,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2417 states, 2416 states have (on average 3.156456953642384) internal successors, (7626), 2416 states have internal predecessors, (7626), 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 00:09:51,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2417 states to 2417 states and 7626 transitions. [2021-06-05 00:09:51,404 INFO L78 Accepts]: Start accepts. Automaton has 2417 states and 7626 transitions. Word has length 56 [2021-06-05 00:09:51,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:09:51,404 INFO L482 AbstractCegarLoop]: Abstraction has 2417 states and 7626 transitions. [2021-06-05 00:09:51,404 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 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 00:09:51,404 INFO L276 IsEmpty]: Start isEmpty. Operand 2417 states and 7626 transitions. [2021-06-05 00:09:51,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 00:09:51,408 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:09:51,408 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 00:09:51,409 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 00:09:51,409 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:09:51,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:09:51,409 INFO L82 PathProgramCache]: Analyzing trace with hash 299649944, now seen corresponding path program 2 times [2021-06-05 00:09:51,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:09:51,409 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657045614] [2021-06-05 00:09:51,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:09:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:09:51,470 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 00:09:51,471 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:09:51,471 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657045614] [2021-06-05 00:09:51,471 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657045614] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:09:51,471 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:09:51,471 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 00:09:51,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540503432] [2021-06-05 00:09:51,471 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 00:09:51,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:09:51,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 00:09:51,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:09:51,472 INFO L87 Difference]: Start difference. First operand 2417 states and 7626 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 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 00:09:51,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:09:51,543 INFO L93 Difference]: Finished difference Result 2865 states and 8922 transitions. [2021-06-05 00:09:51,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:09:51,544 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 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 00:09:51,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:09:51,547 INFO L225 Difference]: With dead ends: 2865 [2021-06-05 00:09:51,547 INFO L226 Difference]: Without dead ends: 1285 [2021-06-05 00:09:51,547 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 61.3ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-06-05 00:09:51,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2021-06-05 00:09:51,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 1285. [2021-06-05 00:09:51,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1285 states, 1284 states have (on average 2.9883177570093458) internal successors, (3837), 1284 states have internal predecessors, (3837), 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 00:09:51,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 3837 transitions. [2021-06-05 00:09:51,567 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 3837 transitions. Word has length 56 [2021-06-05 00:09:51,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:09:51,567 INFO L482 AbstractCegarLoop]: Abstraction has 1285 states and 3837 transitions. [2021-06-05 00:09:51,567 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 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 00:09:51,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 3837 transitions. [2021-06-05 00:09:51,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 00:09:51,569 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:09:51,569 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 00:09:51,569 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 00:09:51,569 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:09:51,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:09:51,569 INFO L82 PathProgramCache]: Analyzing trace with hash 2078823676, now seen corresponding path program 3 times [2021-06-05 00:09:51,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:09:51,569 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743309249] [2021-06-05 00:09:51,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:09:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:09:51,620 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 00:09:51,620 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:09:51,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743309249] [2021-06-05 00:09:51,620 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743309249] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:09:51,620 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:09:51,620 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:09:51,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89096754] [2021-06-05 00:09:51,621 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:09:51,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:09:51,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:09:51,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:09:51,621 INFO L87 Difference]: Start difference. First operand 1285 states and 3837 transitions. 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 00:09:51,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:09:51,690 INFO L93 Difference]: Finished difference Result 1486 states and 4388 transitions. [2021-06-05 00:09:51,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:09:51,691 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 00:09:51,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:09:51,693 INFO L225 Difference]: With dead ends: 1486 [2021-06-05 00:09:51,693 INFO L226 Difference]: Without dead ends: 1150 [2021-06-05 00:09:51,694 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 62.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:09:51,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2021-06-05 00:09:51,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 1150. [2021-06-05 00:09:51,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 1149 states have (on average 2.947780678851175) internal successors, (3387), 1149 states have internal predecessors, (3387), 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 00:09:51,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 3387 transitions. [2021-06-05 00:09:51,716 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 3387 transitions. Word has length 56 [2021-06-05 00:09:51,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:09:51,717 INFO L482 AbstractCegarLoop]: Abstraction has 1150 states and 3387 transitions. [2021-06-05 00:09:51,717 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 00:09:51,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 3387 transitions. [2021-06-05 00:09:51,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-05 00:09:51,718 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:09:51,719 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] [2021-06-05 00:09:51,719 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 00:09:51,719 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:09:51,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:09:51,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1611481061, now seen corresponding path program 1 times [2021-06-05 00:09:51,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:09:51,719 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545445682] [2021-06-05 00:09:51,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:09:51,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:09:51,798 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 00:09:51,799 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:09:51,800 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545445682] [2021-06-05 00:09:51,800 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545445682] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:09:51,800 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:09:51,800 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:09:51,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808852236] [2021-06-05 00:09:51,801 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:09:51,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:09:51,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:09:51,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:09:51,802 INFO L87 Difference]: Start difference. First operand 1150 states and 3387 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:09:51,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:09:51,892 INFO L93 Difference]: Finished difference Result 1042 states and 2967 transitions. [2021-06-05 00:09:51,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 00:09:51,892 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-06-05 00:09:51,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:09:51,894 INFO L225 Difference]: With dead ends: 1042 [2021-06-05 00:09:51,894 INFO L226 Difference]: Without dead ends: 790 [2021-06-05 00:09:51,894 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 79.2ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 00:09:51,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2021-06-05 00:09:51,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2021-06-05 00:09:51,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 789 states have (on average 2.790874524714829) internal successors, (2202), 789 states have internal predecessors, (2202), 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 00:09:51,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 2202 transitions. [2021-06-05 00:09:51,907 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 2202 transitions. Word has length 57 [2021-06-05 00:09:51,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:09:51,907 INFO L482 AbstractCegarLoop]: Abstraction has 790 states and 2202 transitions. [2021-06-05 00:09:51,907 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:09:51,907 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 2202 transitions. [2021-06-05 00:09:51,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 00:09:51,908 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:09:51,908 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 00:09:51,908 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 00:09:51,909 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:09:51,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:09:51,918 INFO L82 PathProgramCache]: Analyzing trace with hash 2015620850, now seen corresponding path program 1 times [2021-06-05 00:09:51,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:09:51,918 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915603664] [2021-06-05 00:09:51,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:09:51,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:09:52,000 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 00:09:52,001 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:09:52,001 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915603664] [2021-06-05 00:09:52,001 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915603664] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:09:52,002 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:09:52,002 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 00:09:52,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466495941] [2021-06-05 00:09:52,003 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 00:09:52,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:09:52,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 00:09:52,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:09:52,003 INFO L87 Difference]: Start difference. First operand 790 states and 2202 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:09:52,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:09:52,062 INFO L93 Difference]: Finished difference Result 493 states and 1311 transitions. [2021-06-05 00:09:52,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 00:09:52,062 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-06-05 00:09:52,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:09:52,062 INFO L225 Difference]: With dead ends: 493 [2021-06-05 00:09:52,063 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 00:09:52,063 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 73.1ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-06-05 00:09:52,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 00:09:52,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 00:09:52,063 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 00:09:52,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 00:09:52,063 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-06-05 00:09:52,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:09:52,064 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 00:09:52,064 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:09:52,064 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 00:09:52,064 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 00:09:52,064 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 00:09:52,065 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 00:09:52,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 12:09:52 BasicIcfg [2021-06-05 00:09:52,067 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 00:09:52,068 INFO L168 Benchmark]: Toolchain (without parser) took 4847.35 ms. Allocated memory was 346.0 MB in the beginning and 1.9 GB in the end (delta: 1.6 GB). Free memory was 309.6 MB in the beginning and 1.8 GB in the end (delta: -1.5 GB). Peak memory consumption was 117.4 MB. Max. memory is 16.0 GB. [2021-06-05 00:09:52,068 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 346.0 MB. Free memory was 327.2 MB in the beginning and 327.2 MB in the end (delta: 76.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 00:09:52,068 INFO L168 Benchmark]: CACSL2BoogieTranslator took 417.26 ms. Allocated memory is still 346.0 MB. Free memory was 309.3 MB in the beginning and 310.0 MB in the end (delta: -692.2 kB). Peak memory consumption was 9.2 MB. Max. memory is 16.0 GB. [2021-06-05 00:09:52,068 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.49 ms. Allocated memory is still 346.0 MB. Free memory was 310.0 MB in the beginning and 307.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:09:52,068 INFO L168 Benchmark]: Boogie Preprocessor took 31.09 ms. Allocated memory is still 346.0 MB. Free memory was 307.9 MB in the beginning and 307.0 MB in the end (delta: 954.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 00:09:52,069 INFO L168 Benchmark]: RCFGBuilder took 375.99 ms. Allocated memory is still 346.0 MB. Free memory was 307.0 MB in the beginning and 282.8 MB in the end (delta: 24.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-05 00:09:52,071 INFO L168 Benchmark]: TraceAbstraction took 3968.08 ms. Allocated memory was 346.0 MB in the beginning and 1.9 GB in the end (delta: 1.6 GB). Free memory was 281.8 MB in the beginning and 1.8 GB in the end (delta: -1.5 GB). Peak memory consumption was 90.4 MB. Max. memory is 16.0 GB. [2021-06-05 00:09:52,075 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 346.0 MB. Free memory was 327.2 MB in the beginning and 327.2 MB in the end (delta: 76.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 417.26 ms. Allocated memory is still 346.0 MB. Free memory was 309.3 MB in the beginning and 310.0 MB in the end (delta: -692.2 kB). Peak memory consumption was 9.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 48.49 ms. Allocated memory is still 346.0 MB. Free memory was 310.0 MB in the beginning and 307.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 31.09 ms. Allocated memory is still 346.0 MB. Free memory was 307.9 MB in the beginning and 307.0 MB in the end (delta: 954.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 375.99 ms. Allocated memory is still 346.0 MB. Free memory was 307.0 MB in the beginning and 282.8 MB in the end (delta: 24.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3968.08 ms. Allocated memory was 346.0 MB in the beginning and 1.9 GB in the end (delta: 1.6 GB). Free memory was 281.8 MB in the beginning and 1.8 GB in the end (delta: -1.5 GB). Peak memory consumption was 90.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 106 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3860.9ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 96.7ms, AutomataDifference: 1505.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 436.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 941 SDtfs, 1428 SDslu, 3257 SDs, 0 SdLazy, 358 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 234.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 865.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9331occurred in iteration=0, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 605.6ms AutomataMinimizationTime, 9 MinimizatonAttempts, 2316 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 29.7ms SsaConstructionTime, 167.5ms SatisfiabilityAnalysisTime, 832.6ms InterpolantComputationTime, 491 NumberOfCodeBlocks, 491 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 482 ConstructedInterpolants, 0 QuantifiedInterpolants, 2098 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...