/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-17 23:52:57,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-17 23:52:57,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-17 23:52:57,797 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-17 23:52:57,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-17 23:52:57,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-17 23:52:57,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-17 23:52:57,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-17 23:52:57,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-17 23:52:57,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-17 23:52:57,826 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-17 23:52:57,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-17 23:52:57,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-17 23:52:57,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-17 23:52:57,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-17 23:52:57,831 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-17 23:52:57,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-17 23:52:57,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-17 23:52:57,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-17 23:52:57,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-17 23:52:57,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-17 23:52:57,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-17 23:52:57,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-17 23:52:57,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-17 23:52:57,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-17 23:52:57,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-17 23:52:57,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-17 23:52:57,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-17 23:52:57,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-17 23:52:57,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-17 23:52:57,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-17 23:52:57,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-17 23:52:57,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-17 23:52:57,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-17 23:52:57,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-17 23:52:57,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-17 23:52:57,863 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-keepdead.epf [2020-12-17 23:52:57,894 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-17 23:52:57,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-17 23:52:57,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-17 23:52:57,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-17 23:52:57,897 INFO L138 SettingsManager]: * Use SBE=true [2020-12-17 23:52:57,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-17 23:52:57,897 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-17 23:52:57,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-17 23:52:57,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-17 23:52:57,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-17 23:52:57,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-17 23:52:57,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-17 23:52:57,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-17 23:52:57,899 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-17 23:52:57,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-17 23:52:57,899 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-17 23:52:57,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-17 23:52:57,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-17 23:52:57,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-17 23:52:57,900 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-17 23:52:57,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-17 23:52:57,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 23:52:57,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-17 23:52:57,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-17 23:52:57,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-17 23:52:57,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-17 23:52:57,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-17 23:52:57,902 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-17 23:52:57,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-17 23:52:57,903 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-17 23:52:57,903 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-17 23:52:57,903 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-17 23:52:58,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-17 23:52:58,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-17 23:52:58,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-17 23:52:58,374 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-17 23:52:58,376 INFO L275 PluginConnector]: CDTParser initialized [2020-12-17 23:52:58,377 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2020-12-17 23:52:58,473 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b250250ad/7f6c5c4614264b33909238271a1bb8ba/FLAG1f1908269 [2020-12-17 23:52:59,159 INFO L306 CDTParser]: Found 1 translation units. [2020-12-17 23:52:59,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2020-12-17 23:52:59,184 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b250250ad/7f6c5c4614264b33909238271a1bb8ba/FLAG1f1908269 [2020-12-17 23:52:59,446 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b250250ad/7f6c5c4614264b33909238271a1bb8ba [2020-12-17 23:52:59,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-17 23:52:59,454 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-17 23:52:59,458 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-17 23:52:59,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-17 23:52:59,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-17 23:52:59,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:52:59" (1/1) ... [2020-12-17 23:52:59,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14e09e02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:52:59, skipping insertion in model container [2020-12-17 23:52:59,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:52:59" (1/1) ... [2020-12-17 23:52:59,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-17 23:52:59,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-17 23:53:00,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:53:00,060 INFO L203 MainTranslator]: Completed pre-run [2020-12-17 23:53:00,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:53:00,271 INFO L208 MainTranslator]: Completed translation [2020-12-17 23:53:00,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:53:00 WrapperNode [2020-12-17 23:53:00,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-17 23:53:00,273 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-17 23:53:00,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-17 23:53:00,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-17 23:53:00,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:53:00" (1/1) ... [2020-12-17 23:53:00,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:53:00" (1/1) ... [2020-12-17 23:53:00,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-17 23:53:00,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-17 23:53:00,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-17 23:53:00,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-17 23:53:00,341 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:53:00" (1/1) ... [2020-12-17 23:53:00,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:53:00" (1/1) ... [2020-12-17 23:53:00,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:53:00" (1/1) ... [2020-12-17 23:53:00,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:53:00" (1/1) ... [2020-12-17 23:53:00,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:53:00" (1/1) ... [2020-12-17 23:53:00,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:53:00" (1/1) ... [2020-12-17 23:53:00,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:53:00" (1/1) ... [2020-12-17 23:53:00,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-17 23:53:00,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-17 23:53:00,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-17 23:53:00,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-17 23:53:00,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:53:00" (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 [2020-12-17 23:53:00,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-17 23:53:00,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-17 23:53:00,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-17 23:53:00,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-17 23:53:00,453 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-17 23:53:00,453 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-17 23:53:00,453 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-17 23:53:00,453 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-17 23:53:00,454 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-17 23:53:00,454 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-17 23:53:00,454 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-12-17 23:53:00,454 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-12-17 23:53:00,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-17 23:53:00,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-17 23:53:00,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-17 23:53:00,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-17 23:53:00,456 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-17 23:53:00,983 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-17 23:53:00,984 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-17 23:53:00,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:53:00 BoogieIcfgContainer [2020-12-17 23:53:00,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-17 23:53:00,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-17 23:53:00,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-17 23:53:00,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-17 23:53:00,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 11:52:59" (1/3) ... [2020-12-17 23:53:00,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b27839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:53:00, skipping insertion in model container [2020-12-17 23:53:00,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:53:00" (2/3) ... [2020-12-17 23:53:00,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b27839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:53:00, skipping insertion in model container [2020-12-17 23:53:00,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:53:00" (3/3) ... [2020-12-17 23:53:00,995 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.oepc.i [2020-12-17 23:53:01,011 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-17 23:53:01,012 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-17 23:53:01,016 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-17 23:53:01,017 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-17 23:53:01,050 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,051 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,051 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,051 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,052 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,052 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,052 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,052 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,053 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,053 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,053 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,053 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,054 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,054 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,054 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,054 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,055 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,055 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,055 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,055 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,056 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,056 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,056 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,057 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,057 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,057 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,057 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,058 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,058 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,058 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,058 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,058 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,059 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,060 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,060 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,060 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,061 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,061 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,061 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,061 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,061 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,062 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,062 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,062 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,063 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,063 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,063 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,063 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,066 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,066 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,066 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,067 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,073 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,073 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,074 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,074 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,077 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,077 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,077 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,077 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,080 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,080 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,080 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:53:01,083 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-17 23:53:01,097 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-17 23:53:01,121 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-17 23:53:01,121 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-17 23:53:01,121 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-17 23:53:01,122 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-17 23:53:01,122 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-17 23:53:01,122 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-17 23:53:01,122 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-17 23:53:01,122 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-17 23:53:01,136 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 100 places, 90 transitions, 200 flow [2020-12-17 23:53:11,015 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54312 states, 54310 states have (on average 4.420254096851409) internal successors, (240064), 54311 states have internal predecessors, (240064), 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) [2020-12-17 23:53:11,095 INFO L276 IsEmpty]: Start isEmpty. Operand has 54312 states, 54310 states have (on average 4.420254096851409) internal successors, (240064), 54311 states have internal predecessors, (240064), 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) [2020-12-17 23:53:11,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-17 23:53:11,322 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:53:11,324 INFO L504 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] [2020-12-17 23:53:11,324 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:53:11,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:53:11,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1521340881, now seen corresponding path program 1 times [2020-12-17 23:53:11,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:53:11,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735525430] [2020-12-17 23:53:11,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:53:11,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:53:11,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:53:11,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735525430] [2020-12-17 23:53:11,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:53:11,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:53:11,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843780397] [2020-12-17 23:53:11,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:53:11,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:53:11,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:53:11,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:53:11,993 INFO L87 Difference]: Start difference. First operand has 54312 states, 54310 states have (on average 4.420254096851409) internal successors, (240064), 54311 states have internal predecessors, (240064), 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 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2020-12-17 23:53:13,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:53:13,889 INFO L93 Difference]: Finished difference Result 68928 states and 296104 transitions. [2020-12-17 23:53:13,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:53:13,891 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2020-12-17 23:53:13,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:53:13,899 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:53:13,900 INFO L78 Accepts]: Start accepts. Automaton has 68928 states and 296104 transitions. Word has length 46 [2020-12-17 23:53:13,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:53:13,905 INFO L481 AbstractCegarLoop]: Abstraction has 68928 states and 296104 transitions. [2020-12-17 23:53:13,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2020-12-17 23:53:13,905 INFO L276 IsEmpty]: Start isEmpty. Operand 68928 states and 296104 transitions. [2020-12-17 23:53:13,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-17 23:53:13,988 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:53:13,988 INFO L504 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] [2020-12-17 23:53:13,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-17 23:53:13,989 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:53:13,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:53:13,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1443855120, now seen corresponding path program 1 times [2020-12-17 23:53:13,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:53:13,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716161736] [2020-12-17 23:53:13,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:53:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:53:14,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:53:14,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716161736] [2020-12-17 23:53:14,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:53:14,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:53:14,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345980978] [2020-12-17 23:53:14,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:53:14,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:53:14,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:53:14,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:53:14,244 INFO L87 Difference]: Start difference. First operand 68928 states and 296104 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:53:15,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:53:15,655 INFO L93 Difference]: Finished difference Result 106224 states and 453904 transitions. [2020-12-17 23:53:15,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:53:15,659 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2020-12-17 23:53:15,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:53:15,661 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:53:15,662 INFO L78 Accepts]: Start accepts. Automaton has 106224 states and 453904 transitions. Word has length 48 [2020-12-17 23:53:15,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:53:15,663 INFO L481 AbstractCegarLoop]: Abstraction has 106224 states and 453904 transitions. [2020-12-17 23:53:15,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:53:15,663 INFO L276 IsEmpty]: Start isEmpty. Operand 106224 states and 453904 transitions. [2020-12-17 23:53:16,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-17 23:53:16,121 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:53:16,121 INFO L504 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] [2020-12-17 23:53:16,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-17 23:53:16,133 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:53:16,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:53:16,134 INFO L82 PathProgramCache]: Analyzing trace with hash 783013961, now seen corresponding path program 1 times [2020-12-17 23:53:16,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:53:16,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270068109] [2020-12-17 23:53:16,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:53:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:53:16,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:53:16,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270068109] [2020-12-17 23:53:16,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:53:16,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:53:16,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434181618] [2020-12-17 23:53:16,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:53:16,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:53:16,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:53:16,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:53:16,447 INFO L87 Difference]: Start difference. First operand 106224 states and 453904 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:53:18,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:53:18,531 INFO L93 Difference]: Finished difference Result 160320 states and 678380 transitions. [2020-12-17 23:53:18,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:53:18,532 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2020-12-17 23:53:18,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:53:18,533 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:53:18,533 INFO L78 Accepts]: Start accepts. Automaton has 160320 states and 678380 transitions. Word has length 49 [2020-12-17 23:53:18,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:53:18,537 INFO L481 AbstractCegarLoop]: Abstraction has 160320 states and 678380 transitions. [2020-12-17 23:53:18,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:53:18,538 INFO L276 IsEmpty]: Start isEmpty. Operand 160320 states and 678380 transitions. [2020-12-17 23:53:18,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-17 23:53:18,671 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:53:18,672 INFO L504 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] [2020-12-17 23:53:18,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-17 23:53:18,683 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:53:18,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:53:18,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1975787338, now seen corresponding path program 1 times [2020-12-17 23:53:18,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:53:18,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713384312] [2020-12-17 23:53:18,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:53:18,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:53:18,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:53:18,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713384312] [2020-12-17 23:53:18,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:53:18,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:53:18,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721149327] [2020-12-17 23:53:18,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:53:18,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:53:18,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:53:18,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:53:18,875 INFO L87 Difference]: Start difference. First operand 160320 states and 678380 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) [2020-12-17 23:53:22,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:53:22,461 INFO L93 Difference]: Finished difference Result 259776 states and 1085964 transitions. [2020-12-17 23:53:22,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:53:22,462 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 [2020-12-17 23:53:22,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:53:22,466 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:53:22,466 INFO L78 Accepts]: Start accepts. Automaton has 259776 states and 1085964 transitions. Word has length 51 [2020-12-17 23:53:22,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:53:22,466 INFO L481 AbstractCegarLoop]: Abstraction has 259776 states and 1085964 transitions. [2020-12-17 23:53:22,466 INFO L482 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) [2020-12-17 23:53:22,467 INFO L276 IsEmpty]: Start isEmpty. Operand 259776 states and 1085964 transitions. [2020-12-17 23:53:22,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-17 23:53:22,700 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:53:22,700 INFO L504 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] [2020-12-17 23:53:22,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-17 23:53:22,701 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:53:22,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:53:22,702 INFO L82 PathProgramCache]: Analyzing trace with hash 350404744, now seen corresponding path program 1 times [2020-12-17 23:53:22,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:53:22,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397114134] [2020-12-17 23:53:22,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:53:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:53:22,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:53:22,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397114134] [2020-12-17 23:53:22,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:53:22,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:53:22,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860048120] [2020-12-17 23:53:22,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:53:22,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:53:22,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:53:22,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:53:22,859 INFO L87 Difference]: Start difference. First operand 259776 states and 1085964 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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) [2020-12-17 23:53:27,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:53:27,678 INFO L93 Difference]: Finished difference Result 418624 states and 1739836 transitions. [2020-12-17 23:53:27,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:53:27,679 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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 52 [2020-12-17 23:53:27,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:53:27,679 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:53:27,680 INFO L78 Accepts]: Start accepts. Automaton has 418624 states and 1739836 transitions. Word has length 52 [2020-12-17 23:53:27,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:53:27,680 INFO L481 AbstractCegarLoop]: Abstraction has 418624 states and 1739836 transitions. [2020-12-17 23:53:27,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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) [2020-12-17 23:53:27,680 INFO L276 IsEmpty]: Start isEmpty. Operand 418624 states and 1739836 transitions. [2020-12-17 23:53:28,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-17 23:53:28,043 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:53:28,043 INFO L504 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] [2020-12-17 23:53:28,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-17 23:53:28,043 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:53:28,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:53:28,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1207661705, now seen corresponding path program 1 times [2020-12-17 23:53:28,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:53:28,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938921] [2020-12-17 23:53:28,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:53:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:53:29,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:53:29,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938921] [2020-12-17 23:53:29,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:53:29,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:53:29,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82164710] [2020-12-17 23:53:29,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:53:29,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:53:29,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:53:29,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:53:29,081 INFO L87 Difference]: Start difference. First operand 418624 states and 1739836 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 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) [2020-12-17 23:53:35,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:53:35,578 INFO L93 Difference]: Finished difference Result 593824 states and 2459796 transitions. [2020-12-17 23:53:35,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:53:35,579 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 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 [2020-12-17 23:53:35,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:53:35,583 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:53:35,583 INFO L78 Accepts]: Start accepts. Automaton has 593824 states and 2459796 transitions. Word has length 54 [2020-12-17 23:53:35,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:53:35,585 INFO L481 AbstractCegarLoop]: Abstraction has 593824 states and 2459796 transitions. [2020-12-17 23:53:35,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 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) [2020-12-17 23:53:35,585 INFO L276 IsEmpty]: Start isEmpty. Operand 593824 states and 2459796 transitions. [2020-12-17 23:53:37,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-17 23:53:37,081 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:53:37,081 INFO L504 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] [2020-12-17 23:53:37,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-17 23:53:37,082 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:53:37,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:53:37,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1887275789, now seen corresponding path program 2 times [2020-12-17 23:53:37,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:53:37,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086332017] [2020-12-17 23:53:37,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:53:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:53:37,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:53:37,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086332017] [2020-12-17 23:53:37,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:53:37,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:53:37,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568747206] [2020-12-17 23:53:37,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:53:37,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:53:37,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:53:37,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:53:37,207 INFO L87 Difference]: Start difference. First operand 593824 states and 2459796 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) [2020-12-17 23:53:43,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:53:43,334 INFO L93 Difference]: Finished difference Result 488124 states and 1990433 transitions. [2020-12-17 23:53:43,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-17 23:53:43,334 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 [2020-12-17 23:53:43,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:53:43,335 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:53:43,335 INFO L78 Accepts]: Start accepts. Automaton has 488124 states and 1990433 transitions. Word has length 54 [2020-12-17 23:53:43,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:53:43,336 INFO L481 AbstractCegarLoop]: Abstraction has 488124 states and 1990433 transitions. [2020-12-17 23:53:43,336 INFO L482 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) [2020-12-17 23:53:43,336 INFO L276 IsEmpty]: Start isEmpty. Operand 488124 states and 1990433 transitions. [2020-12-17 23:53:43,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-17 23:53:43,836 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:53:43,836 INFO L504 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] [2020-12-17 23:53:43,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-17 23:53:43,837 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:53:43,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:53:43,840 INFO L82 PathProgramCache]: Analyzing trace with hash 741333027, now seen corresponding path program 1 times [2020-12-17 23:53:43,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:53:43,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95276652] [2020-12-17 23:53:43,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:53:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:53:44,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:53:44,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95276652] [2020-12-17 23:53:44,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:53:44,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:53:44,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003674703] [2020-12-17 23:53:44,070 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:53:44,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:53:44,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:53:44,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:53:44,072 INFO L87 Difference]: Start difference. First operand 488124 states and 1990433 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) [2020-12-17 23:53:48,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:53:48,164 INFO L93 Difference]: Finished difference Result 306444 states and 1223749 transitions. [2020-12-17 23:53:48,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:53:48,166 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 [2020-12-17 23:53:48,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:53:48,166 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-12-17 23:53:48,166 INFO L78 Accepts]: Start accepts. Automaton has 306444 states and 1223749 transitions. Word has length 55 [2020-12-17 23:53:48,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:53:48,167 INFO L481 AbstractCegarLoop]: Abstraction has 306444 states and 1223749 transitions. [2020-12-17 23:53:48,167 INFO L482 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) [2020-12-17 23:53:48,167 INFO L276 IsEmpty]: Start isEmpty. Operand 306444 states and 1223749 transitions. [2020-12-17 23:53:48,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-17 23:53:48,693 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:53:48,693 INFO L504 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] [2020-12-17 23:53:48,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-17 23:53:48,693 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:53:48,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:53:48,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1669139404, now seen corresponding path program 1 times [2020-12-17 23:53:48,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:53:48,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143188274] [2020-12-17 23:53:48,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:53:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:53:48,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:53:48,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143188274] [2020-12-17 23:53:48,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:53:48,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-17 23:53:48,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465331775] [2020-12-17 23:53:48,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-17 23:53:48,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:53:48,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-17 23:53:48,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-17 23:53:48,968 INFO L87 Difference]: Start difference. First operand 306444 states and 1223749 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:53:51,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:53:51,379 INFO L93 Difference]: Finished difference Result 184692 states and 724426 transitions. [2020-12-17 23:53:51,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-17 23:53:51,380 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2020-12-17 23:53:51,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:53:51,381 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-12-17 23:53:51,381 INFO L78 Accepts]: Start accepts. Automaton has 184692 states and 724426 transitions. Word has length 56 [2020-12-17 23:53:51,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:53:51,382 INFO L481 AbstractCegarLoop]: Abstraction has 184692 states and 724426 transitions. [2020-12-17 23:53:51,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:53:51,382 INFO L276 IsEmpty]: Start isEmpty. Operand 184692 states and 724426 transitions. [2020-12-17 23:53:51,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-12-17 23:53:51,729 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:53:51,730 INFO L504 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] [2020-12-17 23:53:51,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-17 23:53:51,730 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:53:51,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:53:51,731 INFO L82 PathProgramCache]: Analyzing trace with hash -10705787, now seen corresponding path program 1 times [2020-12-17 23:53:51,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:53:51,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063747048] [2020-12-17 23:53:51,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:53:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:53:51,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:53:51,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063747048] [2020-12-17 23:53:51,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:53:51,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:53:51,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216024744] [2020-12-17 23:53:51,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:53:51,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:53:51,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:53:51,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:53:51,885 INFO L87 Difference]: Start difference. First operand 184692 states and 724426 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:53:55,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:53:55,885 INFO L93 Difference]: Finished difference Result 232396 states and 909350 transitions. [2020-12-17 23:53:55,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-17 23:53:55,886 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2020-12-17 23:53:55,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:53:55,893 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-12-17 23:53:55,893 INFO L78 Accepts]: Start accepts. Automaton has 232396 states and 909350 transitions. Word has length 58 [2020-12-17 23:53:55,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:53:55,893 INFO L481 AbstractCegarLoop]: Abstraction has 232396 states and 909350 transitions. [2020-12-17 23:53:55,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:53:55,894 INFO L276 IsEmpty]: Start isEmpty. Operand 232396 states and 909350 transitions. [2020-12-17 23:53:56,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-12-17 23:53:56,325 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:53:56,326 INFO L504 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] [2020-12-17 23:53:56,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-17 23:53:56,326 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:53:56,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:53:56,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1226318091, now seen corresponding path program 2 times [2020-12-17 23:53:56,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:53:56,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734290564] [2020-12-17 23:53:56,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:53:56,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:53:56,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:53:56,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734290564] [2020-12-17 23:53:56,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:53:56,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-17 23:53:56,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756382202] [2020-12-17 23:53:56,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-17 23:53:56,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:53:56,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-17 23:53:56,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-17 23:53:56,494 INFO L87 Difference]: Start difference. First operand 232396 states and 909350 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:53:59,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:53:59,436 INFO L93 Difference]: Finished difference Result 165328 states and 646316 transitions. [2020-12-17 23:53:59,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-17 23:53:59,437 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2020-12-17 23:53:59,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:53:59,438 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2020-12-17 23:53:59,438 INFO L78 Accepts]: Start accepts. Automaton has 165328 states and 646316 transitions. Word has length 58 [2020-12-17 23:53:59,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:53:59,438 INFO L481 AbstractCegarLoop]: Abstraction has 165328 states and 646316 transitions. [2020-12-17 23:53:59,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:53:59,439 INFO L276 IsEmpty]: Start isEmpty. Operand 165328 states and 646316 transitions. [2020-12-17 23:54:00,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-17 23:54:00,211 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:54:00,211 INFO L504 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] [2020-12-17 23:54:00,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-17 23:54:00,211 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:54:00,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:54:00,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1195573236, now seen corresponding path program 1 times [2020-12-17 23:54:00,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:54:00,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676029140] [2020-12-17 23:54:00,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:54:00,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:54:00,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:54:00,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676029140] [2020-12-17 23:54:00,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:54:00,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:54:00,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102420707] [2020-12-17 23:54:00,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:54:00,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:54:00,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:54:00,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:54:00,496 INFO L87 Difference]: Start difference. First operand 165328 states and 646316 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:54:03,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:54:03,424 INFO L93 Difference]: Finished difference Result 247381 states and 958473 transitions. [2020-12-17 23:54:03,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-17 23:54:03,425 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2020-12-17 23:54:03,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:54:03,426 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:54:03,426 INFO L78 Accepts]: Start accepts. Automaton has 247381 states and 958473 transitions. Word has length 60 [2020-12-17 23:54:03,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:54:03,427 INFO L481 AbstractCegarLoop]: Abstraction has 247381 states and 958473 transitions. [2020-12-17 23:54:03,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:54:03,427 INFO L276 IsEmpty]: Start isEmpty. Operand 247381 states and 958473 transitions. [2020-12-17 23:54:05,315 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-17 23:54:05,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-17 23:54:05,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 11:54:05 BasicIcfg [2020-12-17 23:54:05,345 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-17 23:54:05,352 INFO L168 Benchmark]: Toolchain (without parser) took 65892.68 ms. Allocated memory was 308.3 MB in the beginning and 15.5 GB in the end (delta: 15.2 GB). Free memory was 282.3 MB in the beginning and 7.4 GB in the end (delta: -7.1 GB). Peak memory consumption was 8.7 GB. Max. memory is 16.0 GB. [2020-12-17 23:54:05,360 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 308.3 MB. Free memory is still 279.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:54:05,366 INFO L168 Benchmark]: CACSL2BoogieTranslator took 814.96 ms. Allocated memory is still 308.3 MB. Free memory was 282.1 MB in the beginning and 283.2 MB in the end (delta: -1.0 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.0 GB. [2020-12-17 23:54:05,367 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.99 ms. Allocated memory is still 308.3 MB. Free memory was 283.2 MB in the beginning and 281.1 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:54:05,367 INFO L168 Benchmark]: Boogie Preprocessor took 31.44 ms. Allocated memory is still 308.3 MB. Free memory was 281.1 MB in the beginning and 279.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:54:05,375 INFO L168 Benchmark]: RCFGBuilder took 623.02 ms. Allocated memory is still 308.3 MB. Free memory was 279.0 MB in the beginning and 254.8 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2020-12-17 23:54:05,381 INFO L168 Benchmark]: TraceAbstraction took 64356.80 ms. Allocated memory was 308.3 MB in the beginning and 15.5 GB in the end (delta: 15.2 GB). Free memory was 254.8 MB in the beginning and 7.4 GB in the end (delta: -7.2 GB). Peak memory consumption was 8.6 GB. Max. memory is 16.0 GB. [2020-12-17 23:54:05,393 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 308.3 MB. Free memory is still 279.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 814.96 ms. Allocated memory is still 308.3 MB. Free memory was 282.1 MB in the beginning and 283.2 MB in the end (delta: -1.0 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 56.99 ms. Allocated memory is still 308.3 MB. Free memory was 283.2 MB in the beginning and 281.1 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 31.44 ms. Allocated memory is still 308.3 MB. Free memory was 281.1 MB in the beginning and 279.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 623.02 ms. Allocated memory is still 308.3 MB. Free memory was 279.0 MB in the beginning and 254.8 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 64356.80 ms. Allocated memory was 308.3 MB in the beginning and 15.5 GB in the end (delta: 15.2 GB). Free memory was 254.8 MB in the beginning and 7.4 GB in the end (delta: -7.2 GB). Peak memory consumption was 8.6 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 64.2s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 42.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.8s, HoareTripleCheckerStatistics: 1775 SDtfs, 3645 SDslu, 6212 SDs, 0 SdLazy, 657 SolverSat, 179 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 190 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=593824occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 641 NumberOfCodeBlocks, 641 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 629 ConstructedInterpolants, 0 QuantifiedInterpolants, 88695 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...