/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/safe008_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 17:23:07,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 17:23:07,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 17:23:07,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-21 17:23:07,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 17:23:07,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 17:23:07,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 17:23:07,283 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 [2021-05-21 17:23:07,304 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 17:23:07,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 17:23:07,305 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 17:23:07,305 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 17:23:07,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 17:23:07,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 17:23:07,307 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 17:23:07,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 17:23:07,307 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 17:23:07,307 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 17:23:07,308 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 17:23:07,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 17:23:07,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 17:23:07,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 17:23:07,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 17:23:07,308 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 17:23:07,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 17:23:07,308 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 17:23:07,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 17:23:07,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 17:23:07,308 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 17:23:07,309 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 17:23:07,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 17:23:07,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 17:23:07,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 17:23:07,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 17:23:07,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 17:23:07,309 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 17:23:07,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 17:23:07,309 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 17:23:07,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 17:23:07,309 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 17:23:07,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 17:23:07,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 17:23:07,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 17:23:07,550 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 17:23:07,552 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 17:23:07,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i [2021-05-21 17:23:07,600 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a58160d8e/c9c304ca07d149bfa802c11ef9fdecbd/FLAG588f5e47a [2021-05-21 17:23:08,040 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 17:23:08,041 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i [2021-05-21 17:23:08,053 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a58160d8e/c9c304ca07d149bfa802c11ef9fdecbd/FLAG588f5e47a [2021-05-21 17:23:08,068 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a58160d8e/c9c304ca07d149bfa802c11ef9fdecbd [2021-05-21 17:23:08,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 17:23:08,072 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 17:23:08,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 17:23:08,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 17:23:08,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 17:23:08,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 05:23:08" (1/1) ... [2021-05-21 17:23:08,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@717ec23a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:08, skipping insertion in model container [2021-05-21 17:23:08,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 05:23:08" (1/1) ... [2021-05-21 17:23:08,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 17:23:08,115 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 17:23:08,300 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/safe008_tso.oepc.i[950,963] [2021-05-21 17:23:08,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 17:23:08,430 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 17:23:08,438 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/safe008_tso.oepc.i[950,963] [2021-05-21 17:23:08,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 17:23:08,500 INFO L208 MainTranslator]: Completed translation [2021-05-21 17:23:08,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:08 WrapperNode [2021-05-21 17:23:08,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 17:23:08,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 17:23:08,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 17:23:08,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 17:23:08,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:08" (1/1) ... [2021-05-21 17:23:08,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:08" (1/1) ... [2021-05-21 17:23:08,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 17:23:08,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 17:23:08,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 17:23:08,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 17:23:08,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:08" (1/1) ... [2021-05-21 17:23:08,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:08" (1/1) ... [2021-05-21 17:23:08,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:08" (1/1) ... [2021-05-21 17:23:08,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:08" (1/1) ... [2021-05-21 17:23:08,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:08" (1/1) ... [2021-05-21 17:23:08,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:08" (1/1) ... [2021-05-21 17:23:08,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:08" (1/1) ... [2021-05-21 17:23:08,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 17:23:08,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 17:23:08,540 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 17:23:08,540 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 17:23:08,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 17:23:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 17:23:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-05-21 17:23:08,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 17:23:08,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 17:23:08,602 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-05-21 17:23:08,603 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-05-21 17:23:08,603 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-05-21 17:23:08,604 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-05-21 17:23:08,604 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-05-21 17:23:08,604 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-05-21 17:23:08,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 17:23:08,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-05-21 17:23:08,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 17:23:08,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 17:23:08,605 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-21 17:23:08,835 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 17:23:08,835 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-05-21 17:23:08,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 05:23:08 BoogieIcfgContainer [2021-05-21 17:23:08,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 17:23:08,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 17:23:08,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 17:23:08,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 17:23:08,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 05:23:08" (1/3) ... [2021-05-21 17:23:08,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d93c07c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 05:23:08, skipping insertion in model container [2021-05-21 17:23:08,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:08" (2/3) ... [2021-05-21 17:23:08,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d93c07c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 05:23:08, skipping insertion in model container [2021-05-21 17:23:08,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 05:23:08" (3/3) ... [2021-05-21 17:23:08,841 INFO L111 eAbstractionObserver]: Analyzing ICFG safe008_tso.oepc.i [2021-05-21 17:23:08,845 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 17:23:08,845 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 17:23:08,845 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-21 17:23:08,846 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 17:23:08,867 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,867 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,867 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,867 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,868 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,868 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,868 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,868 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,868 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,869 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,869 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,869 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,869 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,869 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,869 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,869 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,870 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,870 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,870 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,870 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,870 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,871 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,871 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,871 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,871 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,871 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,871 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,871 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,872 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,872 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,872 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,872 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,872 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,872 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,873 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,873 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,874 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,874 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,874 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,875 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,879 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,879 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,879 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,879 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,881 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,881 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,881 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,881 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:08,883 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-05-21 17:23:08,899 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-05-21 17:23:08,921 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 17:23:08,921 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 17:23:08,921 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 17:23:08,921 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 17:23:08,921 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 17:23:08,921 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 17:23:08,921 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 17:23:08,921 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 17:23:08,935 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-05-21 17:23:09,359 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:09,394 INFO L276 IsEmpty]: Start isEmpty. Operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:09,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-05-21 17:23:09,417 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:23:09,418 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] [2021-05-21 17:23:09,418 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:23:09,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:23:09,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1432389661, now seen corresponding path program 1 times [2021-05-21 17:23:09,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:23:09,427 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655070042] [2021-05-21 17:23:09,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:23:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:23:09,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:23:09,707 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:23:09,707 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655070042] [2021-05-21 17:23:09,707 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655070042] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:23:09,707 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:23:09,708 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:23:09,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357633471] [2021-05-21 17:23:09,711 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:23:09,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:23:09,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:23:09,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:23:09,743 INFO L87 Difference]: Start difference. First operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:10,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:23:10,147 INFO L93 Difference]: Finished difference Result 17683 states and 60730 transitions. [2021-05-21 17:23:10,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-21 17:23:10,149 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-05-21 17:23:10,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:23:10,191 INFO L225 Difference]: With dead ends: 17683 [2021-05-21 17:23:10,191 INFO L226 Difference]: Without dead ends: 5788 [2021-05-21 17:23:10,192 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 209.6ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-05-21 17:23:10,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5788 states. [2021-05-21 17:23:10,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5788 to 4948. [2021-05-21 17:23:10,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4948 states, 4947 states have (on average 3.3480897513644634) internal successors, (16563), 4947 states have internal predecessors, (16563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:10,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4948 states to 4948 states and 16563 transitions. [2021-05-21 17:23:10,492 INFO L78 Accepts]: Start accepts. Automaton has 4948 states and 16563 transitions. Word has length 49 [2021-05-21 17:23:10,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:23:10,495 INFO L482 AbstractCegarLoop]: Abstraction has 4948 states and 16563 transitions. [2021-05-21 17:23:10,496 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:10,497 INFO L276 IsEmpty]: Start isEmpty. Operand 4948 states and 16563 transitions. [2021-05-21 17:23:10,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-05-21 17:23:10,511 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:23:10,512 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] [2021-05-21 17:23:10,512 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 17:23:10,512 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:23:10,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:23:10,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1311501732, now seen corresponding path program 1 times [2021-05-21 17:23:10,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:23:10,515 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114034793] [2021-05-21 17:23:10,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:23:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:23:10,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:23:10,665 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:23:10,665 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114034793] [2021-05-21 17:23:10,665 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114034793] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:23:10,666 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:23:10,666 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 17:23:10,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829679747] [2021-05-21 17:23:10,667 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 17:23:10,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:23:10,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 17:23:10,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 17:23:10,667 INFO L87 Difference]: Start difference. First operand 4948 states and 16563 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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) [2021-05-21 17:23:10,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:23:10,854 INFO L93 Difference]: Finished difference Result 5508 states and 18296 transitions. [2021-05-21 17:23:10,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 17:23:10,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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 [2021-05-21 17:23:10,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:23:10,877 INFO L225 Difference]: With dead ends: 5508 [2021-05-21 17:23:10,877 INFO L226 Difference]: Without dead ends: 4528 [2021-05-21 17:23:10,878 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 79.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 17:23:10,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4528 states. [2021-05-21 17:23:10,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4528 to 4528. [2021-05-21 17:23:10,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4528 states, 4527 states have (on average 3.3194168323392974) internal successors, (15027), 4527 states have internal predecessors, (15027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:11,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4528 states to 4528 states and 15027 transitions. [2021-05-21 17:23:11,005 INFO L78 Accepts]: Start accepts. Automaton has 4528 states and 15027 transitions. Word has length 51 [2021-05-21 17:23:11,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:23:11,005 INFO L482 AbstractCegarLoop]: Abstraction has 4528 states and 15027 transitions. [2021-05-21 17:23:11,005 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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) [2021-05-21 17:23:11,006 INFO L276 IsEmpty]: Start isEmpty. Operand 4528 states and 15027 transitions. [2021-05-21 17:23:11,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-05-21 17:23:11,014 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:23:11,015 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] [2021-05-21 17:23:11,015 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 17:23:11,015 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:23:11,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:23:11,020 INFO L82 PathProgramCache]: Analyzing trace with hash 742880451, now seen corresponding path program 1 times [2021-05-21 17:23:11,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:23:11,021 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332197087] [2021-05-21 17:23:11,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:23:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:23:11,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:23:11,107 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:23:11,107 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332197087] [2021-05-21 17:23:11,107 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332197087] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:23:11,107 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:23:11,107 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:23:11,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800543515] [2021-05-21 17:23:11,108 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:23:11,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:23:11,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:23:11,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:23:11,108 INFO L87 Difference]: Start difference. First operand 4528 states and 15027 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:11,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:23:11,339 INFO L93 Difference]: Finished difference Result 7248 states and 23783 transitions. [2021-05-21 17:23:11,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:23:11,339 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2021-05-21 17:23:11,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:23:11,362 INFO L225 Difference]: With dead ends: 7248 [2021-05-21 17:23:11,362 INFO L226 Difference]: Without dead ends: 5848 [2021-05-21 17:23:11,363 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 165.0ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-05-21 17:23:11,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5848 states. [2021-05-21 17:23:11,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5848 to 4608. [2021-05-21 17:23:11,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4608 states, 4607 states have (on average 3.3169090514434556) internal successors, (15281), 4607 states have internal predecessors, (15281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:11,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4608 states to 4608 states and 15281 transitions. [2021-05-21 17:23:11,469 INFO L78 Accepts]: Start accepts. Automaton has 4608 states and 15281 transitions. Word has length 53 [2021-05-21 17:23:11,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:23:11,470 INFO L482 AbstractCegarLoop]: Abstraction has 4608 states and 15281 transitions. [2021-05-21 17:23:11,470 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:11,471 INFO L276 IsEmpty]: Start isEmpty. Operand 4608 states and 15281 transitions. [2021-05-21 17:23:11,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-05-21 17:23:11,478 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:23:11,478 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] [2021-05-21 17:23:11,478 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 17:23:11,478 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:23:11,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:23:11,479 INFO L82 PathProgramCache]: Analyzing trace with hash -904737545, now seen corresponding path program 2 times [2021-05-21 17:23:11,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:23:11,480 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421305370] [2021-05-21 17:23:11,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:23:11,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:23:11,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:23:11,607 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:23:11,607 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421305370] [2021-05-21 17:23:11,607 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421305370] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:23:11,607 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:23:11,607 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:23:11,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244297511] [2021-05-21 17:23:11,607 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:23:11,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:23:11,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:23:11,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:23:11,608 INFO L87 Difference]: Start difference. First operand 4608 states and 15281 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:11,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:23:11,817 INFO L93 Difference]: Finished difference Result 8307 states and 27134 transitions. [2021-05-21 17:23:11,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:23:11,818 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2021-05-21 17:23:11,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:23:11,835 INFO L225 Difference]: With dead ends: 8307 [2021-05-21 17:23:11,835 INFO L226 Difference]: Without dead ends: 6107 [2021-05-21 17:23:11,836 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 181.8ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-05-21 17:23:11,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6107 states. [2021-05-21 17:23:11,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6107 to 4212. [2021-05-21 17:23:11,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4212 states, 4211 states have (on average 3.2825932082640703) internal successors, (13823), 4211 states have internal predecessors, (13823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:11,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4212 states to 4212 states and 13823 transitions. [2021-05-21 17:23:11,996 INFO L78 Accepts]: Start accepts. Automaton has 4212 states and 13823 transitions. Word has length 53 [2021-05-21 17:23:11,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:23:11,998 INFO L482 AbstractCegarLoop]: Abstraction has 4212 states and 13823 transitions. [2021-05-21 17:23:11,998 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:11,998 INFO L276 IsEmpty]: Start isEmpty. Operand 4212 states and 13823 transitions. [2021-05-21 17:23:12,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-05-21 17:23:12,005 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:23:12,006 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] [2021-05-21 17:23:12,006 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 17:23:12,008 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:23:12,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:23:12,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1490806147, now seen corresponding path program 1 times [2021-05-21 17:23:12,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:23:12,010 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331382377] [2021-05-21 17:23:12,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:23:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:23:12,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:23:12,118 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:23:12,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331382377] [2021-05-21 17:23:12,118 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331382377] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:23:12,118 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:23:12,118 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-21 17:23:12,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505766622] [2021-05-21 17:23:12,119 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-21 17:23:12,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:23:12,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-21 17:23:12,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-05-21 17:23:12,120 INFO L87 Difference]: Start difference. First operand 4212 states and 13823 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:12,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:23:12,228 INFO L93 Difference]: Finished difference Result 6222 states and 20044 transitions. [2021-05-21 17:23:12,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 17:23:12,229 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-05-21 17:23:12,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:23:12,237 INFO L225 Difference]: With dead ends: 6222 [2021-05-21 17:23:12,237 INFO L226 Difference]: Without dead ends: 3293 [2021-05-21 17:23:12,237 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 84.4ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-05-21 17:23:12,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3293 states. [2021-05-21 17:23:12,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3293 to 2813. [2021-05-21 17:23:12,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2813 states, 2812 states have (on average 3.15398293029872) internal successors, (8869), 2812 states have internal predecessors, (8869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:12,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2813 states to 2813 states and 8869 transitions. [2021-05-21 17:23:12,290 INFO L78 Accepts]: Start accepts. Automaton has 2813 states and 8869 transitions. Word has length 54 [2021-05-21 17:23:12,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:23:12,290 INFO L482 AbstractCegarLoop]: Abstraction has 2813 states and 8869 transitions. [2021-05-21 17:23:12,290 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:12,290 INFO L276 IsEmpty]: Start isEmpty. Operand 2813 states and 8869 transitions. [2021-05-21 17:23:12,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-05-21 17:23:12,294 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:23:12,294 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 17:23:12,294 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-21 17:23:12,294 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:23:12,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:23:12,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1323776860, now seen corresponding path program 1 times [2021-05-21 17:23:12,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:23:12,295 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649209615] [2021-05-21 17:23:12,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:23:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:23:12,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:23:12,353 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:23:12,353 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649209615] [2021-05-21 17:23:12,353 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649209615] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:23:12,353 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:23:12,353 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:23:12,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079754044] [2021-05-21 17:23:12,353 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:23:12,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:23:12,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:23:12,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:23:12,354 INFO L87 Difference]: Start difference. First operand 2813 states and 8869 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:12,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:23:12,475 INFO L93 Difference]: Finished difference Result 3221 states and 10023 transitions. [2021-05-21 17:23:12,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 17:23:12,475 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-05-21 17:23:12,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:23:12,478 INFO L225 Difference]: With dead ends: 3221 [2021-05-21 17:23:12,478 INFO L226 Difference]: Without dead ends: 1461 [2021-05-21 17:23:12,478 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 112.9ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-05-21 17:23:12,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2021-05-21 17:23:12,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1461. [2021-05-21 17:23:12,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1460 states have (on average 2.9404109589041094) internal successors, (4293), 1460 states have internal predecessors, (4293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:12,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 4293 transitions. [2021-05-21 17:23:12,501 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 4293 transitions. Word has length 56 [2021-05-21 17:23:12,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:23:12,501 INFO L482 AbstractCegarLoop]: Abstraction has 1461 states and 4293 transitions. [2021-05-21 17:23:12,501 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:12,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 4293 transitions. [2021-05-21 17:23:12,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-05-21 17:23:12,503 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:23:12,503 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] [2021-05-21 17:23:12,503 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-21 17:23:12,504 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:23:12,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:23:12,504 INFO L82 PathProgramCache]: Analyzing trace with hash -4942770, now seen corresponding path program 1 times [2021-05-21 17:23:12,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:23:12,504 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722465741] [2021-05-21 17:23:12,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:23:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:23:12,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:23:12,552 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:23:12,552 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722465741] [2021-05-21 17:23:12,552 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722465741] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:23:12,552 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:23:12,552 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 17:23:12,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561068736] [2021-05-21 17:23:12,552 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 17:23:12,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:23:12,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 17:23:12,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 17:23:12,553 INFO L87 Difference]: Start difference. First operand 1461 states and 4293 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:12,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:23:12,619 INFO L93 Difference]: Finished difference Result 1662 states and 4844 transitions. [2021-05-21 17:23:12,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 17:23:12,620 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-05-21 17:23:12,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:23:12,622 INFO L225 Difference]: With dead ends: 1662 [2021-05-21 17:23:12,622 INFO L226 Difference]: Without dead ends: 1326 [2021-05-21 17:23:12,623 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 53.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 17:23:12,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2021-05-21 17:23:12,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1326. [2021-05-21 17:23:12,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 1325 states have (on average 2.900377358490566) internal successors, (3843), 1325 states have internal predecessors, (3843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:12,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 3843 transitions. [2021-05-21 17:23:12,642 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 3843 transitions. Word has length 57 [2021-05-21 17:23:12,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:23:12,642 INFO L482 AbstractCegarLoop]: Abstraction has 1326 states and 3843 transitions. [2021-05-21 17:23:12,643 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:12,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 3843 transitions. [2021-05-21 17:23:12,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-05-21 17:23:12,645 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:23:12,645 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 17:23:12,645 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-21 17:23:12,645 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:23:12,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:23:12,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1433061019, now seen corresponding path program 1 times [2021-05-21 17:23:12,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:23:12,646 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518367005] [2021-05-21 17:23:12,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:23:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:23:12,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:23:12,722 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:23:12,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518367005] [2021-05-21 17:23:12,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518367005] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:23:12,723 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:23:12,723 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:23:12,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683281576] [2021-05-21 17:23:12,724 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:23:12,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:23:12,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:23:12,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:23:12,724 INFO L87 Difference]: Start difference. First operand 1326 states and 3843 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) [2021-05-21 17:23:12,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:23:12,797 INFO L93 Difference]: Finished difference Result 1218 states and 3423 transitions. [2021-05-21 17:23:12,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 17:23:12,797 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 [2021-05-21 17:23:12,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:23:12,799 INFO L225 Difference]: With dead ends: 1218 [2021-05-21 17:23:12,799 INFO L226 Difference]: Without dead ends: 966 [2021-05-21 17:23:12,801 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 63.7ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-05-21 17:23:12,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2021-05-21 17:23:12,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 966. [2021-05-21 17:23:12,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 965 states have (on average 2.75440414507772) internal successors, (2658), 965 states have internal predecessors, (2658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:12,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 2658 transitions. [2021-05-21 17:23:12,813 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 2658 transitions. Word has length 58 [2021-05-21 17:23:12,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:23:12,813 INFO L482 AbstractCegarLoop]: Abstraction has 966 states and 2658 transitions. [2021-05-21 17:23:12,813 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) [2021-05-21 17:23:12,814 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 2658 transitions. [2021-05-21 17:23:12,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-05-21 17:23:12,815 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:23:12,815 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] [2021-05-21 17:23:12,815 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-21 17:23:12,815 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:23:12,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:23:12,815 INFO L82 PathProgramCache]: Analyzing trace with hash -385159466, now seen corresponding path program 1 times [2021-05-21 17:23:12,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:23:12,816 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84610480] [2021-05-21 17:23:12,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:23:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:23:12,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:23:12,885 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:23:12,885 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84610480] [2021-05-21 17:23:12,885 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84610480] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:23:12,885 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:23:12,885 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-21 17:23:12,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338149749] [2021-05-21 17:23:12,885 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-21 17:23:12,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:23:12,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-21 17:23:12,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-05-21 17:23:12,887 INFO L87 Difference]: Start difference. First operand 966 states and 2658 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:12,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:23:12,942 INFO L93 Difference]: Finished difference Result 669 states and 1767 transitions. [2021-05-21 17:23:12,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-21 17:23:12,942 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-05-21 17:23:12,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:23:12,942 INFO L225 Difference]: With dead ends: 669 [2021-05-21 17:23:12,942 INFO L226 Difference]: Without dead ends: 0 [2021-05-21 17:23:12,942 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 65.7ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-05-21 17:23:12,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-21 17:23:12,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-21 17:23:12,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:12,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-21 17:23:12,943 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2021-05-21 17:23:12,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:23:12,943 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-21 17:23:12,943 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:12,943 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-21 17:23:12,943 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 17:23:12,943 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-05-21 17:23:12,945 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 17:23:12,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 05:23:12 BasicIcfg [2021-05-21 17:23:12,947 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 17:23:12,949 INFO L168 Benchmark]: Toolchain (without parser) took 4875.78 ms. Allocated memory was 383.8 MB in the beginning and 1.1 GB in the end (delta: 681.6 MB). Free memory was 346.4 MB in the beginning and 751.4 MB in the end (delta: -405.0 MB). Peak memory consumption was 277.7 MB. Max. memory is 16.0 GB. [2021-05-21 17:23:12,949 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 383.8 MB. Free memory was 364.6 MB in the beginning and 364.5 MB in the end (delta: 76.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 17:23:12,950 INFO L168 Benchmark]: CACSL2BoogieTranslator took 428.16 ms. Allocated memory is still 383.8 MB. Free memory was 346.2 MB in the beginning and 346.1 MB in the end (delta: 115.3 kB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. [2021-05-21 17:23:12,950 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.07 ms. Allocated memory is still 383.8 MB. Free memory was 346.1 MB in the beginning and 344.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 17:23:12,950 INFO L168 Benchmark]: Boogie Preprocessor took 14.18 ms. Allocated memory is still 383.8 MB. Free memory was 344.0 MB in the beginning and 342.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 17:23:12,951 INFO L168 Benchmark]: RCFGBuilder took 296.83 ms. Allocated memory is still 383.8 MB. Free memory was 342.9 MB in the beginning and 317.8 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-05-21 17:23:12,953 INFO L168 Benchmark]: TraceAbstraction took 4109.33 ms. Allocated memory was 383.8 MB in the beginning and 1.1 GB in the end (delta: 681.6 MB). Free memory was 316.7 MB in the beginning and 751.4 MB in the end (delta: -434.7 MB). Peak memory consumption was 247.9 MB. Max. memory is 16.0 GB. [2021-05-21 17:23:12,957 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 383.8 MB. Free memory was 364.6 MB in the beginning and 364.5 MB in the end (delta: 76.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 428.16 ms. Allocated memory is still 383.8 MB. Free memory was 346.2 MB in the beginning and 346.1 MB in the end (delta: 115.3 kB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.07 ms. Allocated memory is still 383.8 MB. Free memory was 346.1 MB in the beginning and 344.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 14.18 ms. Allocated memory is still 383.8 MB. Free memory was 344.0 MB in the beginning and 342.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 296.83 ms. Allocated memory is still 383.8 MB. Free memory was 342.9 MB in the beginning and 317.8 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4109.33 ms. Allocated memory was 383.8 MB in the beginning and 1.1 GB in the end (delta: 681.6 MB). Free memory was 316.7 MB in the beginning and 751.4 MB in the end (delta: -434.7 MB). Peak memory consumption was 247.9 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, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4025.6ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 105.4ms, AutomataDifference: 1619.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 437.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 941 SDtfs, 1694 SDslu, 3271 SDs, 0 SdLazy, 326 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 200.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1016.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=0, InterpolantAutomatonStates: 104, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 791.4ms AutomataMinimizationTime, 9 MinimizatonAttempts, 4455 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 33.6ms SsaConstructionTime, 158.5ms SatisfiabilityAnalysisTime, 715.0ms InterpolantComputationTime, 490 NumberOfCodeBlocks, 490 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 481 ConstructedInterpolants, 0 QuantifiedInterpolants, 1981 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...