/usr/bin/java -Xmx8000000000 -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/safe021_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-12 17:20:03,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-12 17:20:03,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-12 17:20:03,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-12 17:20:03,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-12 17:20:03,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-12 17:20:03,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-12 17:20:03,848 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-12 17:20:03,905 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-12 17:20:03,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-12 17:20:03,906 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-12 17:20:03,906 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-12 17:20:03,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-12 17:20:03,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-12 17:20:03,909 INFO L138 SettingsManager]: * Use SBE=true [2021-06-12 17:20:03,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-12 17:20:03,909 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-12 17:20:03,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-12 17:20:03,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-12 17:20:03,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-12 17:20:03,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-12 17:20:03,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-12 17:20:03,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-12 17:20:03,911 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-12 17:20:03,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-12 17:20:03,911 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-12 17:20:03,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-12 17:20:03,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-12 17:20:03,911 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-12 17:20:03,911 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-12 17:20:03,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-12 17:20:03,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-12 17:20:03,912 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-12 17:20:03,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-12 17:20:03,912 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-12 17:20:03,912 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-12 17:20:03,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-12 17:20:03,913 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-12 17:20:03,913 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-12 17:20:03,913 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-12 17:20:04,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-12 17:20:04,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-12 17:20:04,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-12 17:20:04,245 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-12 17:20:04,246 INFO L275 PluginConnector]: CDTParser initialized [2021-06-12 17:20:04,246 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2021-06-12 17:20:04,298 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/494ac5f73/164306d0ddff40b29544989b260a4896/FLAGd74450ac3 [2021-06-12 17:20:04,817 INFO L306 CDTParser]: Found 1 translation units. [2021-06-12 17:20:04,817 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2021-06-12 17:20:04,837 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/494ac5f73/164306d0ddff40b29544989b260a4896/FLAGd74450ac3 [2021-06-12 17:20:05,325 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/494ac5f73/164306d0ddff40b29544989b260a4896 [2021-06-12 17:20:05,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-12 17:20:05,329 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-12 17:20:05,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-12 17:20:05,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-12 17:20:05,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-12 17:20:05,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 05:20:05" (1/1) ... [2021-06-12 17:20:05,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b69043c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:20:05, skipping insertion in model container [2021-06-12 17:20:05,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 05:20:05" (1/1) ... [2021-06-12 17:20:05,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-12 17:20:05,410 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-12 17:20:05,549 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/safe021_tso.oepc.i[950,963] [2021-06-12 17:20:05,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 17:20:05,744 INFO L203 MainTranslator]: Completed pre-run [2021-06-12 17:20:05,756 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/safe021_tso.oepc.i[950,963] [2021-06-12 17:20:05,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 17:20:05,871 INFO L208 MainTranslator]: Completed translation [2021-06-12 17:20:05,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:20:05 WrapperNode [2021-06-12 17:20:05,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-12 17:20:05,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-12 17:20:05,873 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-12 17:20:05,873 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-12 17:20:05,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:20:05" (1/1) ... [2021-06-12 17:20:05,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:20:05" (1/1) ... [2021-06-12 17:20:05,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-12 17:20:05,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-12 17:20:05,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-12 17:20:05,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-12 17:20:05,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:20:05" (1/1) ... [2021-06-12 17:20:05,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:20:05" (1/1) ... [2021-06-12 17:20:05,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:20:05" (1/1) ... [2021-06-12 17:20:05,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:20:05" (1/1) ... [2021-06-12 17:20:05,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:20:05" (1/1) ... [2021-06-12 17:20:05,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:20:05" (1/1) ... [2021-06-12 17:20:05,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:20:05" (1/1) ... [2021-06-12 17:20:05,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-12 17:20:05,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-12 17:20:05,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-12 17:20:05,959 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-12 17:20:05,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:20:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-12 17:20:06,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-12 17:20:06,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-12 17:20:06,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-12 17:20:06,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-12 17:20:06,029 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-12 17:20:06,031 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-12 17:20:06,031 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-12 17:20:06,031 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-12 17:20:06,032 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-12 17:20:06,032 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-12 17:20:06,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-12 17:20:06,032 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-12 17:20:06,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-12 17:20:06,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-12 17:20:06,034 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-12 17:20:06,476 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-12 17:20:06,476 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-12 17:20:06,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 05:20:06 BoogieIcfgContainer [2021-06-12 17:20:06,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-12 17:20:06,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-12 17:20:06,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-12 17:20:06,482 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-12 17:20:06,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.06 05:20:05" (1/3) ... [2021-06-12 17:20:06,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cca5f02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 05:20:06, skipping insertion in model container [2021-06-12 17:20:06,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:20:05" (2/3) ... [2021-06-12 17:20:06,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cca5f02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 05:20:06, skipping insertion in model container [2021-06-12 17:20:06,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 05:20:06" (3/3) ... [2021-06-12 17:20:06,485 INFO L111 eAbstractionObserver]: Analyzing ICFG safe021_tso.oepc.i [2021-06-12 17:20:06,493 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-12 17:20:06,493 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-12 17:20:06,493 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-12 17:20:06,497 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-12 17:20:06,535 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,535 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,536 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,536 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,536 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,536 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,536 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,536 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,537 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,537 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,537 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,537 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,538 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,538 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,538 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,538 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,540 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,540 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,542 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,543 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,548 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,549 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,549 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,550 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,550 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,551 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,551 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,551 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,551 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,551 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,551 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,552 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,553 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,553 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,553 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,553 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,555 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,556 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,556 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,556 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,561 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,561 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,561 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,561 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,563 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,563 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,563 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,563 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:20:06,566 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-12 17:20:06,585 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-12 17:20:06,600 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 17:20:06,600 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 17:20:06,600 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 17:20:06,601 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 17:20:06,601 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 17:20:06,601 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 17:20:06,601 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 17:20:06,601 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-12 17:20:06,610 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-06-12 17:20:07,146 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) [2021-06-12 17:20:07,187 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) [2021-06-12 17:20:07,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-12 17:20:07,218 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:20:07,219 INFO L472 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] [2021-06-12 17:20:07,219 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:20:07,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:20:07,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1432389661, now seen corresponding path program 1 times [2021-06-12 17:20:07,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:20:07,243 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947685251] [2021-06-12 17:20:07,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:20:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:20:07,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:20:07,629 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:20:07,629 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947685251] [2021-06-12 17:20:07,629 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947685251] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:20:07,630 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:20:07,630 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:20:07,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530715187] [2021-06-12 17:20:07,634 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:20:07,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:20:07,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:20:07,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:20:07,690 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 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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) [2021-06-12 17:20:08,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:20:08,062 INFO L93 Difference]: Finished difference Result 13119 states and 45583 transitions. [2021-06-12 17:20:08,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:20:08,064 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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 [2021-06-12 17:20:08,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:20:08,122 INFO L225 Difference]: With dead ends: 13119 [2021-06-12 17:20:08,122 INFO L226 Difference]: Without dead ends: 4964 [2021-06-12 17:20:08,123 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 175.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:20:08,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4964 states. [2021-06-12 17:20:08,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4964 to 4964. [2021-06-12 17:20:08,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4964 states, 4963 states have (on average 3.4009671569615154) internal successors, (16879), 4963 states have internal predecessors, (16879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:20:08,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4964 states to 4964 states and 16879 transitions. [2021-06-12 17:20:08,514 INFO L78 Accepts]: Start accepts. Automaton has 4964 states and 16879 transitions. Word has length 49 [2021-06-12 17:20:08,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:20:08,517 INFO L482 AbstractCegarLoop]: Abstraction has 4964 states and 16879 transitions. [2021-06-12 17:20:08,518 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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) [2021-06-12 17:20:08,519 INFO L276 IsEmpty]: Start isEmpty. Operand 4964 states and 16879 transitions. [2021-06-12 17:20:08,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-12 17:20:08,535 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:20:08,536 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:20:08,536 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-12 17:20:08,536 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:20:08,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:20:08,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1311501732, now seen corresponding path program 1 times [2021-06-12 17:20:08,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:20:08,540 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356552904] [2021-06-12 17:20:08,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:20:08,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:20:08,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:20:08,793 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:20:08,793 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356552904] [2021-06-12 17:20:08,793 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356552904] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:20:08,793 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:20:08,793 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:20:08,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782088373] [2021-06-12 17:20:08,794 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:20:08,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:20:08,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:20:08,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:20:08,796 INFO L87 Difference]: Start difference. First operand 4964 states and 16879 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) [2021-06-12 17:20:08,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:20:08,970 INFO L93 Difference]: Finished difference Result 5652 states and 19020 transitions. [2021-06-12 17:20:08,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:20:08,971 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 [2021-06-12 17:20:08,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:20:08,998 INFO L225 Difference]: With dead ends: 5652 [2021-06-12 17:20:08,999 INFO L226 Difference]: Without dead ends: 4448 [2021-06-12 17:20:09,000 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 121.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:20:09,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4448 states. [2021-06-12 17:20:09,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4448 to 4448. [2021-06-12 17:20:09,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4448 states, 4447 states have (on average 3.3692376883292106) internal successors, (14983), 4447 states have internal predecessors, (14983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:20:09,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4448 states to 4448 states and 14983 transitions. [2021-06-12 17:20:09,144 INFO L78 Accepts]: Start accepts. Automaton has 4448 states and 14983 transitions. Word has length 51 [2021-06-12 17:20:09,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:20:09,145 INFO L482 AbstractCegarLoop]: Abstraction has 4448 states and 14983 transitions. [2021-06-12 17:20:09,145 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) [2021-06-12 17:20:09,145 INFO L276 IsEmpty]: Start isEmpty. Operand 4448 states and 14983 transitions. [2021-06-12 17:20:09,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-12 17:20:09,157 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:20:09,157 INFO L472 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] [2021-06-12 17:20:09,158 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-12 17:20:09,158 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:20:09,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:20:09,165 INFO L82 PathProgramCache]: Analyzing trace with hash 742880451, now seen corresponding path program 1 times [2021-06-12 17:20:09,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:20:09,166 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699400543] [2021-06-12 17:20:09,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:20:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:20:09,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:20:09,369 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:20:09,369 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699400543] [2021-06-12 17:20:09,369 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699400543] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:20:09,370 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:20:09,370 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:20:09,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454543016] [2021-06-12 17:20:09,371 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:20:09,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:20:09,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:20:09,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:20:09,372 INFO L87 Difference]: Start difference. First operand 4448 states and 14983 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) [2021-06-12 17:20:09,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:20:09,667 INFO L93 Difference]: Finished difference Result 8024 states and 26635 transitions. [2021-06-12 17:20:09,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:20:09,668 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 [2021-06-12 17:20:09,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:20:09,715 INFO L225 Difference]: With dead ends: 8024 [2021-06-12 17:20:09,715 INFO L226 Difference]: Without dead ends: 5996 [2021-06-12 17:20:09,716 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 218.4ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-06-12 17:20:09,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5996 states. [2021-06-12 17:20:09,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5996 to 4936. [2021-06-12 17:20:09,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4936 states, 4935 states have (on average 3.3426545086119552) internal successors, (16496), 4935 states have internal predecessors, (16496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:20:09,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4936 states to 4936 states and 16496 transitions. [2021-06-12 17:20:09,932 INFO L78 Accepts]: Start accepts. Automaton has 4936 states and 16496 transitions. Word has length 53 [2021-06-12 17:20:09,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:20:09,934 INFO L482 AbstractCegarLoop]: Abstraction has 4936 states and 16496 transitions. [2021-06-12 17:20:09,934 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) [2021-06-12 17:20:09,934 INFO L276 IsEmpty]: Start isEmpty. Operand 4936 states and 16496 transitions. [2021-06-12 17:20:09,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-12 17:20:09,945 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:20:09,946 INFO L472 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] [2021-06-12 17:20:09,946 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-12 17:20:09,946 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:20:09,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:20:09,948 INFO L82 PathProgramCache]: Analyzing trace with hash -904737545, now seen corresponding path program 2 times [2021-06-12 17:20:09,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:20:09,948 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910979308] [2021-06-12 17:20:09,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:20:09,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:20:10,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:20:10,088 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:20:10,088 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910979308] [2021-06-12 17:20:10,089 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910979308] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:20:10,089 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:20:10,089 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:20:10,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700068768] [2021-06-12 17:20:10,090 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:20:10,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:20:10,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:20:10,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:20:10,094 INFO L87 Difference]: Start difference. First operand 4936 states and 16496 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) [2021-06-12 17:20:10,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:20:10,254 INFO L93 Difference]: Finished difference Result 6610 states and 21904 transitions. [2021-06-12 17:20:10,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 17:20:10,255 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 [2021-06-12 17:20:10,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:20:10,265 INFO L225 Difference]: With dead ends: 6610 [2021-06-12 17:20:10,266 INFO L226 Difference]: Without dead ends: 3286 [2021-06-12 17:20:10,266 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 124.3ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-12 17:20:10,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3286 states. [2021-06-12 17:20:10,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3286 to 3286. [2021-06-12 17:20:10,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3286 states, 3285 states have (on average 3.2060882800608828) internal successors, (10532), 3285 states have internal predecessors, (10532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:20:10,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3286 states to 3286 states and 10532 transitions. [2021-06-12 17:20:10,363 INFO L78 Accepts]: Start accepts. Automaton has 3286 states and 10532 transitions. Word has length 53 [2021-06-12 17:20:10,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:20:10,365 INFO L482 AbstractCegarLoop]: Abstraction has 3286 states and 10532 transitions. [2021-06-12 17:20:10,365 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) [2021-06-12 17:20:10,366 INFO L276 IsEmpty]: Start isEmpty. Operand 3286 states and 10532 transitions. [2021-06-12 17:20:10,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-12 17:20:10,373 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:20:10,374 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:20:10,375 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-12 17:20:10,377 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:20:10,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:20:10,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1490806147, now seen corresponding path program 1 times [2021-06-12 17:20:10,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:20:10,379 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819656558] [2021-06-12 17:20:10,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:20:10,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:20:10,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:20:10,496 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:20:10,496 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819656558] [2021-06-12 17:20:10,496 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819656558] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:20:10,496 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:20:10,496 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:20:10,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248246689] [2021-06-12 17:20:10,498 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:20:10,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:20:10,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:20:10,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:20:10,498 INFO L87 Difference]: Start difference. First operand 3286 states and 10532 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:20:10,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:20:10,647 INFO L93 Difference]: Finished difference Result 4049 states and 12812 transitions. [2021-06-12 17:20:10,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:20:10,648 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-06-12 17:20:10,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:20:10,657 INFO L225 Difference]: With dead ends: 4049 [2021-06-12 17:20:10,657 INFO L226 Difference]: Without dead ends: 3033 [2021-06-12 17:20:10,657 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 92.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:20:10,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3033 states. [2021-06-12 17:20:10,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3033 to 3033. [2021-06-12 17:20:10,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3033 states, 3032 states have (on average 3.161279683377309) internal successors, (9585), 3032 states have internal predecessors, (9585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:20:10,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3033 states to 3033 states and 9585 transitions. [2021-06-12 17:20:10,736 INFO L78 Accepts]: Start accepts. Automaton has 3033 states and 9585 transitions. Word has length 54 [2021-06-12 17:20:10,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:20:10,736 INFO L482 AbstractCegarLoop]: Abstraction has 3033 states and 9585 transitions. [2021-06-12 17:20:10,736 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:20:10,736 INFO L276 IsEmpty]: Start isEmpty. Operand 3033 states and 9585 transitions. [2021-06-12 17:20:10,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-12 17:20:10,743 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:20:10,743 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:20:10,743 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-12 17:20:10,743 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:20:10,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:20:10,744 INFO L82 PathProgramCache]: Analyzing trace with hash -881950140, now seen corresponding path program 1 times [2021-06-12 17:20:10,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:20:10,745 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639818358] [2021-06-12 17:20:10,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:20:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:20:10,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:20:10,850 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:20:10,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639818358] [2021-06-12 17:20:10,850 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639818358] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:20:10,850 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:20:10,850 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:20:10,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64182848] [2021-06-12 17:20:10,851 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:20:10,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:20:10,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:20:10,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:20:10,852 INFO L87 Difference]: Start difference. First operand 3033 states and 9585 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:20:10,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:20:10,981 INFO L93 Difference]: Finished difference Result 3153 states and 9695 transitions. [2021-06-12 17:20:10,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 17:20:10,982 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-06-12 17:20:10,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:20:10,989 INFO L225 Difference]: With dead ends: 3153 [2021-06-12 17:20:10,989 INFO L226 Difference]: Without dead ends: 2301 [2021-06-12 17:20:10,989 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 99.3ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-12 17:20:10,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2301 states. [2021-06-12 17:20:11,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2301 to 2301. [2021-06-12 17:20:11,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2301 states, 2300 states have (on average 3.0330434782608697) internal successors, (6976), 2300 states have internal predecessors, (6976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:20:11,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 6976 transitions. [2021-06-12 17:20:11,038 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 6976 transitions. Word has length 55 [2021-06-12 17:20:11,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:20:11,039 INFO L482 AbstractCegarLoop]: Abstraction has 2301 states and 6976 transitions. [2021-06-12 17:20:11,039 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:20:11,039 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 6976 transitions. [2021-06-12 17:20:11,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-12 17:20:11,043 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:20:11,043 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:20:11,044 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-12 17:20:11,044 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:20:11,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:20:11,044 INFO L82 PathProgramCache]: Analyzing trace with hash 288757253, now seen corresponding path program 1 times [2021-06-12 17:20:11,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:20:11,046 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817849388] [2021-06-12 17:20:11,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:20:11,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:20:11,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:20:11,140 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:20:11,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817849388] [2021-06-12 17:20:11,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817849388] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:20:11,140 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:20:11,140 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-12 17:20:11,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867148854] [2021-06-12 17:20:11,140 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-12 17:20:11,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:20:11,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-12 17:20:11,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-12 17:20:11,141 INFO L87 Difference]: Start difference. First operand 2301 states and 6976 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:20:11,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:20:11,283 INFO L93 Difference]: Finished difference Result 1941 states and 5722 transitions. [2021-06-12 17:20:11,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-12 17:20:11,283 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-06-12 17:20:11,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:20:11,287 INFO L225 Difference]: With dead ends: 1941 [2021-06-12 17:20:11,287 INFO L226 Difference]: Without dead ends: 1329 [2021-06-12 17:20:11,287 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 113.4ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-12 17:20:11,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2021-06-12 17:20:11,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1281. [2021-06-12 17:20:11,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1281 states, 1280 states have (on average 2.86328125) internal successors, (3665), 1280 states have internal predecessors, (3665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:20:11,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 3665 transitions. [2021-06-12 17:20:11,314 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 3665 transitions. Word has length 57 [2021-06-12 17:20:11,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:20:11,315 INFO L482 AbstractCegarLoop]: Abstraction has 1281 states and 3665 transitions. [2021-06-12 17:20:11,315 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:20:11,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 3665 transitions. [2021-06-12 17:20:11,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 17:20:11,318 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:20:11,318 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:20:11,318 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-12 17:20:11,318 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:20:11,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:20:11,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1821749767, now seen corresponding path program 1 times [2021-06-12 17:20:11,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:20:11,319 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954700903] [2021-06-12 17:20:11,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:20:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:20:11,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:20:11,412 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:20:11,412 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954700903] [2021-06-12 17:20:11,412 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954700903] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:20:11,412 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:20:11,412 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:20:11,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164647650] [2021-06-12 17:20:11,413 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:20:11,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:20:11,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:20:11,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:20:11,413 INFO L87 Difference]: Start difference. First operand 1281 states and 3665 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:20:11,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:20:11,476 INFO L93 Difference]: Finished difference Result 2024 states and 5837 transitions. [2021-06-12 17:20:11,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-12 17:20:11,476 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-12 17:20:11,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:20:11,479 INFO L225 Difference]: With dead ends: 2024 [2021-06-12 17:20:11,479 INFO L226 Difference]: Without dead ends: 1050 [2021-06-12 17:20:11,480 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 69.4ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-06-12 17:20:11,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2021-06-12 17:20:11,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 1050. [2021-06-12 17:20:11,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1049 states have (on average 2.8045757864632983) internal successors, (2942), 1049 states have internal predecessors, (2942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:20:11,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 2942 transitions. [2021-06-12 17:20:11,498 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 2942 transitions. Word has length 61 [2021-06-12 17:20:11,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:20:11,498 INFO L482 AbstractCegarLoop]: Abstraction has 1050 states and 2942 transitions. [2021-06-12 17:20:11,498 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:20:11,499 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 2942 transitions. [2021-06-12 17:20:11,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 17:20:11,501 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:20:11,501 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:20:11,501 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-12 17:20:11,502 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:20:11,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:20:11,502 INFO L82 PathProgramCache]: Analyzing trace with hash -396852797, now seen corresponding path program 2 times [2021-06-12 17:20:11,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:20:11,502 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460845937] [2021-06-12 17:20:11,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:20:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:20:11,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:20:11,570 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:20:11,570 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460845937] [2021-06-12 17:20:11,571 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460845937] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:20:11,571 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:20:11,571 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:20:11,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032303940] [2021-06-12 17:20:11,571 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:20:11,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:20:11,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:20:11,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:20:11,572 INFO L87 Difference]: Start difference. First operand 1050 states and 2942 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:20:11,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:20:11,633 INFO L93 Difference]: Finished difference Result 996 states and 2780 transitions. [2021-06-12 17:20:11,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-12 17:20:11,633 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-12 17:20:11,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:20:11,633 INFO L225 Difference]: With dead ends: 996 [2021-06-12 17:20:11,633 INFO L226 Difference]: Without dead ends: 0 [2021-06-12 17:20:11,634 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 78.1ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:20:11,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-12 17:20:11,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-12 17:20:11,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:20:11,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-12 17:20:11,634 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2021-06-12 17:20:11,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:20:11,635 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-12 17:20:11,635 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:20:11,635 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-12 17:20:11,635 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-12 17:20:11,635 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-12 17:20:11,637 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-12 17:20:11,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.06 05:20:11 BasicIcfg [2021-06-12 17:20:11,639 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-12 17:20:11,640 INFO L168 Benchmark]: Toolchain (without parser) took 6311.24 ms. Allocated memory was 201.3 MB in the beginning and 726.7 MB in the end (delta: 525.3 MB). Free memory was 163.6 MB in the beginning and 529.9 MB in the end (delta: -366.3 MB). Peak memory consumption was 160.1 MB. Max. memory is 8.0 GB. [2021-06-12 17:20:11,640 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 201.3 MB. Free memory is still 181.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-12 17:20:11,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 527.11 ms. Allocated memory is still 201.3 MB. Free memory was 163.5 MB in the beginning and 162.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-06-12 17:20:11,641 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.18 ms. Allocated memory is still 201.3 MB. Free memory was 162.3 MB in the beginning and 160.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-12 17:20:11,641 INFO L168 Benchmark]: Boogie Preprocessor took 18.66 ms. Allocated memory is still 201.3 MB. Free memory was 160.3 MB in the beginning and 159.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-12 17:20:11,641 INFO L168 Benchmark]: RCFGBuilder took 519.41 ms. Allocated memory is still 201.3 MB. Free memory was 158.8 MB in the beginning and 135.2 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-06-12 17:20:11,642 INFO L168 Benchmark]: TraceAbstraction took 5160.02 ms. Allocated memory was 201.3 MB in the beginning and 726.7 MB in the end (delta: 525.3 MB). Free memory was 134.7 MB in the beginning and 529.9 MB in the end (delta: -395.2 MB). Peak memory consumption was 131.2 MB. Max. memory is 8.0 GB. [2021-06-12 17:20:11,643 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 201.3 MB. Free memory is still 181.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 527.11 ms. Allocated memory is still 201.3 MB. Free memory was 163.5 MB in the beginning and 162.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 66.18 ms. Allocated memory is still 201.3 MB. Free memory was 162.3 MB in the beginning and 160.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 18.66 ms. Allocated memory is still 201.3 MB. Free memory was 160.3 MB in the beginning and 159.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 519.41 ms. Allocated memory is still 201.3 MB. Free memory was 158.8 MB in the beginning and 135.2 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5160.02 ms. Allocated memory was 201.3 MB in the beginning and 726.7 MB in the end (delta: 525.3 MB). Free memory was 134.7 MB in the beginning and 529.9 MB in the end (delta: -395.2 MB). Peak memory consumption was 131.2 MB. Max. memory is 8.0 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5037.9ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 135.4ms, AutomataDifference: 1786.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 545.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 962 SDtfs, 1544 SDslu, 3127 SDs, 0 SdLazy, 309 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 264.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1092.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=0, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1006.5ms AutomataMinimizationTime, 9 MinimizatonAttempts, 1108 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 36.9ms SsaConstructionTime, 263.5ms SatisfiabilityAnalysisTime, 994.1ms InterpolantComputationTime, 494 NumberOfCodeBlocks, 494 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 485 ConstructedInterpolants, 0 QuantifiedInterpolants, 1503 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...