/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/safe037_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 17:36:38,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 17:36:38,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 17:36:38,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-10 17:36:38,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 17:36:38,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 17:36:38,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 17:36:38,773 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 [2021-03-10 17:36:38,791 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 17:36:38,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 17:36:38,791 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 17:36:38,791 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 17:36:38,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 17:36:38,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 17:36:38,794 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 17:36:38,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 17:36:38,794 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 17:36:38,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 17:36:38,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 17:36:38,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 17:36:38,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 17:36:38,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 17:36:38,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 17:36:38,795 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 17:36:38,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 17:36:38,795 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 17:36:38,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 17:36:38,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 17:36:38,795 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 17:36:38,795 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 17:36:38,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 17:36:38,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 17:36:38,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 17:36:38,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 17:36:38,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 17:36:38,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 17:36:38,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 17:36:38,796 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 17:36:38,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 17:36:38,796 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 17:36:39,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 17:36:39,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 17:36:39,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 17:36:39,021 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 17:36:39,022 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 17:36:39,022 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i [2021-03-10 17:36:39,064 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbe2910af/6e658839c20e48b1a19869b05c602596/FLAGa78970588 [2021-03-10 17:36:39,441 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 17:36:39,442 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i [2021-03-10 17:36:39,464 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbe2910af/6e658839c20e48b1a19869b05c602596/FLAGa78970588 [2021-03-10 17:36:39,478 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbe2910af/6e658839c20e48b1a19869b05c602596 [2021-03-10 17:36:39,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 17:36:39,484 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 17:36:39,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 17:36:39,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 17:36:39,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 17:36:39,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:36:39" (1/1) ... [2021-03-10 17:36:39,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a4a70b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:39, skipping insertion in model container [2021-03-10 17:36:39,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:36:39" (1/1) ... [2021-03-10 17:36:39,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 17:36:39,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 17:36:39,684 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i[950,963] [2021-03-10 17:36:39,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:36:39,773 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 17:36:39,780 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i[950,963] [2021-03-10 17:36:39,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:36:39,842 INFO L208 MainTranslator]: Completed translation [2021-03-10 17:36:39,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:39 WrapperNode [2021-03-10 17:36:39,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 17:36:39,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 17:36:39,843 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 17:36:39,844 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 17:36:39,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:39" (1/1) ... [2021-03-10 17:36:39,856 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:39" (1/1) ... [2021-03-10 17:36:39,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 17:36:39,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 17:36:39,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 17:36:39,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 17:36:39,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:39" (1/1) ... [2021-03-10 17:36:39,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:39" (1/1) ... [2021-03-10 17:36:39,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:39" (1/1) ... [2021-03-10 17:36:39,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:39" (1/1) ... [2021-03-10 17:36:39,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:39" (1/1) ... [2021-03-10 17:36:39,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:39" (1/1) ... [2021-03-10 17:36:39,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:39" (1/1) ... [2021-03-10 17:36:39,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 17:36:39,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 17:36:39,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 17:36:39,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 17:36:39,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:39" (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 [2021-03-10 17:36:39,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 17:36:39,926 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-10 17:36:39,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 17:36:39,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 17:36:39,927 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-10 17:36:39,928 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-10 17:36:39,928 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-10 17:36:39,928 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-10 17:36:39,929 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-10 17:36:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-10 17:36:39,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-10 17:36:39,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-10 17:36:39,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 17:36:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 17:36:39,930 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 17:36:40,227 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 17:36:40,228 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-10 17:36:40,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:36:40 BoogieIcfgContainer [2021-03-10 17:36:40,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 17:36:40,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 17:36:40,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 17:36:40,232 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 17:36:40,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 05:36:39" (1/3) ... [2021-03-10 17:36:40,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba2ec30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:36:40, skipping insertion in model container [2021-03-10 17:36:40,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:39" (2/3) ... [2021-03-10 17:36:40,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba2ec30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:36:40, skipping insertion in model container [2021-03-10 17:36:40,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:36:40" (3/3) ... [2021-03-10 17:36:40,234 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_tso.oepc.i [2021-03-10 17:36:40,237 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 17:36:40,237 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 17:36:40,240 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-10 17:36:40,240 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 17:36:40,266 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,266 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,266 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,266 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,266 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,266 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,266 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,266 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,267 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,267 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,267 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,267 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,268 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,268 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,268 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,268 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,268 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,268 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,268 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,268 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,269 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,269 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,269 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,270 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,271 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,271 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,271 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,271 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,272 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,272 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,274 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,274 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,274 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,274 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,275 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,275 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,277 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,277 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,277 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,277 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,286 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,286 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,286 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,286 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,288 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,288 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,290 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,291 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:40,293 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-10 17:36:40,304 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-10 17:36:40,321 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 17:36:40,321 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 17:36:40,321 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 17:36:40,321 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 17:36:40,321 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 17:36:40,321 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 17:36:40,321 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 17:36:40,321 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 17:36:40,330 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 84 places, 76 transitions, 167 flow [2021-03-10 17:36:40,815 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8820 states, 8818 states have (on average 3.580517124064414) internal successors, (31573), 8819 states have internal predecessors, (31573), 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) [2021-03-10 17:36:40,849 INFO L276 IsEmpty]: Start isEmpty. Operand has 8820 states, 8818 states have (on average 3.580517124064414) internal successors, (31573), 8819 states have internal predecessors, (31573), 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) [2021-03-10 17:36:40,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-03-10 17:36:40,871 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:36:40,872 INFO L519 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] [2021-03-10 17:36:40,873 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:36:40,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:36:40,876 INFO L82 PathProgramCache]: Analyzing trace with hash 965294801, now seen corresponding path program 1 times [2021-03-10 17:36:40,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:36:40,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043959584] [2021-03-10 17:36:40,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:36:41,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:36:41,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:36:41,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043959584] [2021-03-10 17:36:41,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:36:41,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:36:41,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124484859] [2021-03-10 17:36:41,167 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:36:41,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:36:41,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:36:41,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:36:41,228 INFO L87 Difference]: Start difference. First operand has 8820 states, 8818 states have (on average 3.580517124064414) internal successors, (31573), 8819 states have internal predecessors, (31573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:36:41,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:36:41,505 INFO L93 Difference]: Finished difference Result 8784 states and 29876 transitions. [2021-03-10 17:36:41,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 17:36:41,507 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-03-10 17:36:41,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:36:41,540 INFO L225 Difference]: With dead ends: 8784 [2021-03-10 17:36:41,540 INFO L226 Difference]: Without dead ends: 4000 [2021-03-10 17:36:41,541 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 149.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:36:41,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4000 states. [2021-03-10 17:36:41,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4000 to 4000. [2021-03-10 17:36:41,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4000 states, 3999 states have (on average 3.3435858964741185) internal successors, (13371), 3999 states have internal predecessors, (13371), 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) [2021-03-10 17:36:41,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4000 states to 4000 states and 13371 transitions. [2021-03-10 17:36:41,708 INFO L78 Accepts]: Start accepts. Automaton has 4000 states and 13371 transitions. Word has length 41 [2021-03-10 17:36:41,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:36:41,709 INFO L480 AbstractCegarLoop]: Abstraction has 4000 states and 13371 transitions. [2021-03-10 17:36:41,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:36:41,712 INFO L276 IsEmpty]: Start isEmpty. Operand 4000 states and 13371 transitions. [2021-03-10 17:36:41,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-03-10 17:36:41,717 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:36:41,718 INFO L519 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] [2021-03-10 17:36:41,722 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 17:36:41,722 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:36:41,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:36:41,724 INFO L82 PathProgramCache]: Analyzing trace with hash 412886121, now seen corresponding path program 1 times [2021-03-10 17:36:41,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:36:41,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334584078] [2021-03-10 17:36:41,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:36:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:36:41,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:36:41,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334584078] [2021-03-10 17:36:41,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:36:41,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:36:41,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416794143] [2021-03-10 17:36:41,906 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:36:41,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:36:41,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:36:41,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:36:41,907 INFO L87 Difference]: Start difference. First operand 4000 states and 13371 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:36:42,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:36:42,102 INFO L93 Difference]: Finished difference Result 3532 states and 11304 transitions. [2021-03-10 17:36:42,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 17:36:42,103 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-03-10 17:36:42,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:36:42,112 INFO L225 Difference]: With dead ends: 3532 [2021-03-10 17:36:42,112 INFO L226 Difference]: Without dead ends: 2416 [2021-03-10 17:36:42,113 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 164.2ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-03-10 17:36:42,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2021-03-10 17:36:42,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 2416. [2021-03-10 17:36:42,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2416 states, 2415 states have (on average 3.1316770186335403) internal successors, (7563), 2415 states have internal predecessors, (7563), 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) [2021-03-10 17:36:42,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2416 states to 2416 states and 7563 transitions. [2021-03-10 17:36:42,179 INFO L78 Accepts]: Start accepts. Automaton has 2416 states and 7563 transitions. Word has length 45 [2021-03-10 17:36:42,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:36:42,179 INFO L480 AbstractCegarLoop]: Abstraction has 2416 states and 7563 transitions. [2021-03-10 17:36:42,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:36:42,179 INFO L276 IsEmpty]: Start isEmpty. Operand 2416 states and 7563 transitions. [2021-03-10 17:36:42,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-03-10 17:36:42,182 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:36:42,183 INFO L519 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] [2021-03-10 17:36:42,183 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 17:36:42,183 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:36:42,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:36:42,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1916958631, now seen corresponding path program 1 times [2021-03-10 17:36:42,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:36:42,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805666742] [2021-03-10 17:36:42,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:36:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:36:42,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:36:42,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805666742] [2021-03-10 17:36:42,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:36:42,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-10 17:36:42,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305725464] [2021-03-10 17:36:42,301 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-10 17:36:42,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:36:42,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-10 17:36:42,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-10 17:36:42,301 INFO L87 Difference]: Start difference. First operand 2416 states and 7563 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 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) [2021-03-10 17:36:42,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:36:42,486 INFO L93 Difference]: Finished difference Result 1768 states and 5340 transitions. [2021-03-10 17:36:42,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-10 17:36:42,487 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 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 [2021-03-10 17:36:42,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:36:42,491 INFO L225 Difference]: With dead ends: 1768 [2021-03-10 17:36:42,491 INFO L226 Difference]: Without dead ends: 1228 [2021-03-10 17:36:42,492 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 158.4ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:36:42,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2021-03-10 17:36:42,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 1228. [2021-03-10 17:36:42,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 1227 states have (on average 2.936430317848411) internal successors, (3603), 1227 states have internal predecessors, (3603), 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) [2021-03-10 17:36:42,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 3603 transitions. [2021-03-10 17:36:42,512 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 3603 transitions. Word has length 49 [2021-03-10 17:36:42,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:36:42,513 INFO L480 AbstractCegarLoop]: Abstraction has 1228 states and 3603 transitions. [2021-03-10 17:36:42,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 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) [2021-03-10 17:36:42,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 3603 transitions. [2021-03-10 17:36:42,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-03-10 17:36:42,515 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:36:42,516 INFO L519 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] [2021-03-10 17:36:42,516 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 17:36:42,516 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:36:42,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:36:42,517 INFO L82 PathProgramCache]: Analyzing trace with hash -959807771, now seen corresponding path program 1 times [2021-03-10 17:36:42,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:36:42,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071027240] [2021-03-10 17:36:42,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:36:42,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:36:42,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:36:42,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071027240] [2021-03-10 17:36:42,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:36:42,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:36:42,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64425892] [2021-03-10 17:36:42,599 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:36:42,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:36:42,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:36:42,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:36:42,600 INFO L87 Difference]: Start difference. First operand 1228 states and 3603 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) [2021-03-10 17:36:42,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:36:42,653 INFO L93 Difference]: Finished difference Result 1831 states and 5350 transitions. [2021-03-10 17:36:42,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-10 17:36:42,653 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 [2021-03-10 17:36:42,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:36:42,661 INFO L225 Difference]: With dead ends: 1831 [2021-03-10 17:36:42,662 INFO L226 Difference]: Without dead ends: 958 [2021-03-10 17:36:42,662 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 59.1ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:36:42,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2021-03-10 17:36:42,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 958. [2021-03-10 17:36:42,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 957 states have (on average 2.8401253918495297) internal successors, (2718), 957 states have internal predecessors, (2718), 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) [2021-03-10 17:36:42,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 2718 transitions. [2021-03-10 17:36:42,676 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 2718 transitions. Word has length 53 [2021-03-10 17:36:42,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:36:42,676 INFO L480 AbstractCegarLoop]: Abstraction has 958 states and 2718 transitions. [2021-03-10 17:36:42,676 INFO L481 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) [2021-03-10 17:36:42,677 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 2718 transitions. [2021-03-10 17:36:42,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-03-10 17:36:42,678 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:36:42,678 INFO L519 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] [2021-03-10 17:36:42,678 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-10 17:36:42,678 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:36:42,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:36:42,680 INFO L82 PathProgramCache]: Analyzing trace with hash 723271277, now seen corresponding path program 2 times [2021-03-10 17:36:42,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:36:42,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497760242] [2021-03-10 17:36:42,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:36:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:36:42,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:36:42,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497760242] [2021-03-10 17:36:42,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:36:42,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:36:42,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629169459] [2021-03-10 17:36:42,771 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:36:42,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:36:42,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:36:42,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:36:42,771 INFO L87 Difference]: Start difference. First operand 958 states and 2718 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) [2021-03-10 17:36:42,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:36:42,846 INFO L93 Difference]: Finished difference Result 1361 states and 3895 transitions. [2021-03-10 17:36:42,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-10 17:36:42,847 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 [2021-03-10 17:36:42,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:36:42,850 INFO L225 Difference]: With dead ends: 1361 [2021-03-10 17:36:42,850 INFO L226 Difference]: Without dead ends: 846 [2021-03-10 17:36:42,850 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 76.6ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:36:42,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2021-03-10 17:36:42,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 814. [2021-03-10 17:36:42,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 813 states have (on average 2.782287822878229) internal successors, (2262), 813 states have internal predecessors, (2262), 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) [2021-03-10 17:36:42,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 2262 transitions. [2021-03-10 17:36:42,862 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 2262 transitions. Word has length 53 [2021-03-10 17:36:42,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:36:42,862 INFO L480 AbstractCegarLoop]: Abstraction has 814 states and 2262 transitions. [2021-03-10 17:36:42,862 INFO L481 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) [2021-03-10 17:36:42,862 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 2262 transitions. [2021-03-10 17:36:42,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-03-10 17:36:42,864 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:36:42,864 INFO L519 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] [2021-03-10 17:36:42,865 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-10 17:36:42,865 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:36:42,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:36:42,865 INFO L82 PathProgramCache]: Analyzing trace with hash 495104011, now seen corresponding path program 3 times [2021-03-10 17:36:42,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:36:42,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024000459] [2021-03-10 17:36:42,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:36:42,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:36:42,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:36:42,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024000459] [2021-03-10 17:36:42,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:36:42,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:36:42,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117486002] [2021-03-10 17:36:42,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:36:42,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:36:42,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:36:42,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:36:42,977 INFO L87 Difference]: Start difference. First operand 814 states and 2262 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) [2021-03-10 17:36:43,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:36:43,053 INFO L93 Difference]: Finished difference Result 760 states and 2100 transitions. [2021-03-10 17:36:43,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-10 17:36:43,053 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 [2021-03-10 17:36:43,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:36:43,054 INFO L225 Difference]: With dead ends: 760 [2021-03-10 17:36:43,054 INFO L226 Difference]: Without dead ends: 0 [2021-03-10 17:36:43,055 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 98.1ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:36:43,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-10 17:36:43,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-10 17:36:43,055 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) [2021-03-10 17:36:43,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-10 17:36:43,055 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2021-03-10 17:36:43,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:36:43,055 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-10 17:36:43,055 INFO L481 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) [2021-03-10 17:36:43,055 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-10 17:36:43,056 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-10 17:36:43,056 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-10 17:36:43,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 05:36:43 BasicIcfg [2021-03-10 17:36:43,058 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 17:36:43,062 INFO L168 Benchmark]: Toolchain (without parser) took 3577.97 ms. Allocated memory was 331.4 MB in the beginning and 429.9 MB in the end (delta: 98.6 MB). Free memory was 294.8 MB in the beginning and 365.6 MB in the end (delta: -70.8 MB). Peak memory consumption was 30.3 MB. Max. memory is 16.0 GB. [2021-03-10 17:36:43,062 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 331.4 MB. Free memory is still 312.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 17:36:43,062 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.47 ms. Allocated memory is still 331.4 MB. Free memory was 294.2 MB in the beginning and 293.5 MB in the end (delta: 744.2 kB). Peak memory consumption was 8.9 MB. Max. memory is 16.0 GB. [2021-03-10 17:36:43,063 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.34 ms. Allocated memory is still 331.4 MB. Free memory was 293.5 MB in the beginning and 291.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 17:36:43,063 INFO L168 Benchmark]: Boogie Preprocessor took 12.65 ms. Allocated memory is still 331.4 MB. Free memory was 291.4 MB in the beginning and 290.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 17:36:43,064 INFO L168 Benchmark]: RCFGBuilder took 349.20 ms. Allocated memory is still 331.4 MB. Free memory was 290.3 MB in the beginning and 265.2 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-10 17:36:43,066 INFO L168 Benchmark]: TraceAbstraction took 2828.25 ms. Allocated memory was 331.4 MB in the beginning and 429.9 MB in the end (delta: 98.6 MB). Free memory was 265.2 MB in the beginning and 365.6 MB in the end (delta: -100.4 MB). Peak memory consumption was 207.9 kB. Max. memory is 16.0 GB. [2021-03-10 17:36:43,072 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 331.4 MB. Free memory is still 312.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 358.47 ms. Allocated memory is still 331.4 MB. Free memory was 294.2 MB in the beginning and 293.5 MB in the end (delta: 744.2 kB). Peak memory consumption was 8.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.34 ms. Allocated memory is still 331.4 MB. Free memory was 293.5 MB in the beginning and 291.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.65 ms. Allocated memory is still 331.4 MB. Free memory was 291.4 MB in the beginning and 290.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 349.20 ms. Allocated memory is still 331.4 MB. Free memory was 290.3 MB in the beginning and 265.2 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2828.25 ms. Allocated memory was 331.4 MB in the beginning and 429.9 MB in the end (delta: 98.6 MB). Free memory was 265.2 MB in the beginning and 365.6 MB in the end (delta: -100.4 MB). Peak memory consumption was 207.9 kB. 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2737.0ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 70.5ms, AutomataDifference: 990.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 494.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 548 SDtfs, 775 SDslu, 1964 SDs, 0 SdLazy, 237 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 205.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 705.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8820occurred in iteration=0, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 270.9ms AutomataMinimizationTime, 6 MinimizatonAttempts, 32 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 22.7ms SsaConstructionTime, 163.3ms SatisfiabilityAnalysisTime, 591.5ms InterpolantComputationTime, 294 NumberOfCodeBlocks, 294 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 864 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...