/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-05 19:57:00,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 19:57:00,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 19:57:00,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 19:57:00,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 19:57:00,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 19:57:00,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 19:57:00,943 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-05 19:57:00,967 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 19:57:00,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 19:57:00,968 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 19:57:00,968 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 19:57:00,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 19:57:00,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 19:57:00,969 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 19:57:00,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 19:57:00,969 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 19:57:00,969 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 19:57:00,970 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 19:57:00,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 19:57:00,970 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 19:57:00,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 19:57:00,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 19:57:00,970 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 19:57:00,970 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 19:57:00,970 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 19:57:00,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 19:57:00,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 19:57:00,971 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 19:57:00,971 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 19:57:00,971 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 19:57:00,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 19:57:00,971 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 19:57:00,971 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 19:57:00,972 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 19:57:00,972 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 19:57:00,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 19:57:00,972 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 19:57:00,972 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 19:57:00,972 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 19:57:01,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 19:57:01,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 19:57:01,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 19:57:01,194 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 19:57:01,195 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 19:57:01,195 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i [2021-06-05 19:57:01,253 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba9bbb202/2e1f020277e74dbeb11dffccefef5562/FLAGf001bde29 [2021-06-05 19:57:01,653 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 19:57:01,653 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i [2021-06-05 19:57:01,666 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba9bbb202/2e1f020277e74dbeb11dffccefef5562/FLAGf001bde29 [2021-06-05 19:57:01,994 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba9bbb202/2e1f020277e74dbeb11dffccefef5562 [2021-06-05 19:57:01,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 19:57:02,000 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 19:57:02,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 19:57:02,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 19:57:02,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 19:57:02,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 07:57:01" (1/1) ... [2021-06-05 19:57:02,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6843e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:57:02, skipping insertion in model container [2021-06-05 19:57:02,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 07:57:01" (1/1) ... [2021-06-05 19:57:02,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 19:57:02,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 19:57:02,144 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i[949,962] [2021-06-05 19:57:02,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 19:57:02,310 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 19:57:02,318 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i[949,962] [2021-06-05 19:57:02,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 19:57:02,399 INFO L208 MainTranslator]: Completed translation [2021-06-05 19:57:02,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:57:02 WrapperNode [2021-06-05 19:57:02,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 19:57:02,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 19:57:02,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 19:57:02,401 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 19:57:02,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:57:02" (1/1) ... [2021-06-05 19:57:02,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:57:02" (1/1) ... [2021-06-05 19:57:02,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 19:57:02,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 19:57:02,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 19:57:02,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 19:57:02,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:57:02" (1/1) ... [2021-06-05 19:57:02,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:57:02" (1/1) ... [2021-06-05 19:57:02,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:57:02" (1/1) ... [2021-06-05 19:57:02,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:57:02" (1/1) ... [2021-06-05 19:57:02,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:57:02" (1/1) ... [2021-06-05 19:57:02,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:57:02" (1/1) ... [2021-06-05 19:57:02,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:57:02" (1/1) ... [2021-06-05 19:57:02,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 19:57:02,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 19:57:02,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 19:57:02,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 19:57:02,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:57:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 19:57:02,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 19:57:02,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 19:57:02,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 19:57:02,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 19:57:02,555 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 19:57:02,556 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 19:57:02,556 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 19:57:02,556 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 19:57:02,556 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 19:57:02,556 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 19:57:02,556 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-05 19:57:02,556 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-05 19:57:02,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 19:57:02,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 19:57:02,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 19:57:02,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 19:57:02,558 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 19:57:02,845 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 19:57:02,846 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 19:57:02,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 07:57:02 BoogieIcfgContainer [2021-06-05 19:57:02,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 19:57:02,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 19:57:02,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 19:57:02,850 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 19:57:02,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 07:57:01" (1/3) ... [2021-06-05 19:57:02,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f928c11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 07:57:02, skipping insertion in model container [2021-06-05 19:57:02,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:57:02" (2/3) ... [2021-06-05 19:57:02,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f928c11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 07:57:02, skipping insertion in model container [2021-06-05 19:57:02,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 07:57:02" (3/3) ... [2021-06-05 19:57:02,852 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_pso.opt.i [2021-06-05 19:57:02,855 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 19:57:02,855 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 19:57:02,856 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 19:57:02,856 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 19:57:02,876 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,876 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,876 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,876 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,876 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,877 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,877 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,877 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,877 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,877 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,877 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,877 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,878 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,878 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,878 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,878 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,878 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,878 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,878 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,878 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,878 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,879 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,879 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,879 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,879 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,879 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,879 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,879 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,879 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,879 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,880 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,880 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,880 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,880 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,880 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,880 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,880 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,881 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,881 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,881 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,881 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,881 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,881 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,881 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,881 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,881 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,882 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,882 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,883 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,883 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,883 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,883 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,887 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,887 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,887 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,887 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,888 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,888 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,888 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,889 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,890 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,890 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,890 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,890 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:57:02,891 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 19:57:02,905 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-05 19:57:02,917 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 19:57:02,917 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 19:57:02,917 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 19:57:02,917 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 19:57:02,917 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 19:57:02,917 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 19:57:02,917 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 19:57:02,918 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-05 19:57:02,924 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 110 places, 99 transitions, 218 flow [2021-06-05 19:57:08,217 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 51816 states, 51814 states have (on average 4.3685876404060675) internal successors, (226354), 51815 states have internal predecessors, (226354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:08,399 INFO L276 IsEmpty]: Start isEmpty. Operand has 51816 states, 51814 states have (on average 4.3685876404060675) internal successors, (226354), 51815 states have internal predecessors, (226354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:08,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-05 19:57:08,474 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:57:08,475 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:57:08,475 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:57:08,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:57:08,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1244979450, now seen corresponding path program 1 times [2021-06-05 19:57:08,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:57:08,488 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503377563] [2021-06-05 19:57:08,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:57:08,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:57:08,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:57:08,867 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:57:08,867 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503377563] [2021-06-05 19:57:08,868 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503377563] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:57:08,868 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:57:08,868 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:57:08,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292936812] [2021-06-05 19:57:08,871 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:57:08,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:57:08,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:57:08,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:57:08,939 INFO L87 Difference]: Start difference. First operand has 51816 states, 51814 states have (on average 4.3685876404060675) internal successors, (226354), 51815 states have internal predecessors, (226354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:09,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:57:09,693 INFO L93 Difference]: Finished difference Result 69204 states and 296446 transitions. [2021-06-05 19:57:09,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 19:57:09,695 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-06-05 19:57:09,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:57:09,871 INFO L225 Difference]: With dead ends: 69204 [2021-06-05 19:57:09,871 INFO L226 Difference]: Without dead ends: 24096 [2021-06-05 19:57:09,872 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 106.4ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-05 19:57:10,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24096 states. [2021-06-05 19:57:10,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24096 to 24096. [2021-06-05 19:57:10,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24096 states, 24095 states have (on average 4.189831915335132) internal successors, (100954), 24095 states have internal predecessors, (100954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:11,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24096 states to 24096 states and 100954 transitions. [2021-06-05 19:57:11,031 INFO L78 Accepts]: Start accepts. Automaton has 24096 states and 100954 transitions. Word has length 57 [2021-06-05 19:57:11,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:57:11,032 INFO L482 AbstractCegarLoop]: Abstraction has 24096 states and 100954 transitions. [2021-06-05 19:57:11,032 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:11,032 INFO L276 IsEmpty]: Start isEmpty. Operand 24096 states and 100954 transitions. [2021-06-05 19:57:11,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-06-05 19:57:11,062 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:57:11,062 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:57:11,063 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 19:57:11,063 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:57:11,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:57:11,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1340177017, now seen corresponding path program 1 times [2021-06-05 19:57:11,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:57:11,064 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362181342] [2021-06-05 19:57:11,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:57:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:57:11,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:57:11,152 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:57:11,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362181342] [2021-06-05 19:57:11,152 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362181342] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:57:11,152 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:57:11,152 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:57:11,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733923710] [2021-06-05 19:57:11,153 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:57:11,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:57:11,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:57:11,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:57:11,154 INFO L87 Difference]: Start difference. First operand 24096 states and 100954 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:11,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:57:11,700 INFO L93 Difference]: Finished difference Result 31746 states and 132805 transitions. [2021-06-05 19:57:11,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 19:57:11,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-06-05 19:57:11,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:57:11,816 INFO L225 Difference]: With dead ends: 31746 [2021-06-05 19:57:11,816 INFO L226 Difference]: Without dead ends: 25986 [2021-06-05 19:57:11,817 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 211.7ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-06-05 19:57:11,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25986 states. [2021-06-05 19:57:12,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25986 to 25986. [2021-06-05 19:57:12,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25986 states, 25985 states have (on average 4.194150471425822) internal successors, (108985), 25985 states have internal predecessors, (108985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:12,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25986 states to 25986 states and 108985 transitions. [2021-06-05 19:57:12,666 INFO L78 Accepts]: Start accepts. Automaton has 25986 states and 108985 transitions. Word has length 59 [2021-06-05 19:57:12,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:57:12,666 INFO L482 AbstractCegarLoop]: Abstraction has 25986 states and 108985 transitions. [2021-06-05 19:57:12,666 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:12,667 INFO L276 IsEmpty]: Start isEmpty. Operand 25986 states and 108985 transitions. [2021-06-05 19:57:12,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 19:57:12,713 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:57:12,714 INFO L554 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] [2021-06-05 19:57:12,714 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 19:57:12,714 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:57:12,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:57:12,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1653088773, now seen corresponding path program 1 times [2021-06-05 19:57:12,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:57:12,715 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344205734] [2021-06-05 19:57:12,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:57:12,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:57:12,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:57:12,961 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:57:12,961 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344205734] [2021-06-05 19:57:12,961 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344205734] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:57:12,961 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:57:12,961 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:57:12,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934284023] [2021-06-05 19:57:12,962 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:57:12,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:57:12,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:57:12,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:57:12,962 INFO L87 Difference]: Start difference. First operand 25986 states and 108985 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) [2021-06-05 19:57:13,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:57:13,207 INFO L93 Difference]: Finished difference Result 28674 states and 119409 transitions. [2021-06-05 19:57:13,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 19:57:13,208 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 [2021-06-05 19:57:13,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:57:13,274 INFO L225 Difference]: With dead ends: 28674 [2021-06-05 19:57:13,274 INFO L226 Difference]: Without dead ends: 23970 [2021-06-05 19:57:13,274 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 90.4ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-05 19:57:13,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23970 states. [2021-06-05 19:57:13,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23970 to 23586. [2021-06-05 19:57:13,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23586 states, 23585 states have (on average 4.1687937248251) internal successors, (98321), 23585 states have internal predecessors, (98321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:13,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23586 states to 23586 states and 98321 transitions. [2021-06-05 19:57:13,950 INFO L78 Accepts]: Start accepts. Automaton has 23586 states and 98321 transitions. Word has length 60 [2021-06-05 19:57:13,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:57:13,950 INFO L482 AbstractCegarLoop]: Abstraction has 23586 states and 98321 transitions. [2021-06-05 19:57:13,950 INFO L483 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) [2021-06-05 19:57:13,950 INFO L276 IsEmpty]: Start isEmpty. Operand 23586 states and 98321 transitions. [2021-06-05 19:57:14,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 19:57:14,148 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:57:14,148 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:57:14,148 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 19:57:14,148 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:57:14,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:57:14,149 INFO L82 PathProgramCache]: Analyzing trace with hash 844952552, now seen corresponding path program 1 times [2021-06-05 19:57:14,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:57:14,149 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386933508] [2021-06-05 19:57:14,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:57:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:57:14,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:57:14,295 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:57:14,295 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386933508] [2021-06-05 19:57:14,298 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386933508] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:57:14,298 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:57:14,298 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 19:57:14,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241539557] [2021-06-05 19:57:14,299 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 19:57:14,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:57:14,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 19:57:14,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-05 19:57:14,300 INFO L87 Difference]: Start difference. First operand 23586 states and 98321 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:14,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:57:14,618 INFO L93 Difference]: Finished difference Result 32106 states and 133357 transitions. [2021-06-05 19:57:14,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 19:57:14,618 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-05 19:57:14,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:57:14,662 INFO L225 Difference]: With dead ends: 32106 [2021-06-05 19:57:14,663 INFO L226 Difference]: Without dead ends: 15061 [2021-06-05 19:57:14,663 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 126.6ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 19:57:14,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15061 states. [2021-06-05 19:57:14,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15061 to 15061. [2021-06-05 19:57:14,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15061 states, 15060 states have (on average 4.10996015936255) internal successors, (61896), 15060 states have internal predecessors, (61896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:15,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15061 states to 15061 states and 61896 transitions. [2021-06-05 19:57:15,208 INFO L78 Accepts]: Start accepts. Automaton has 15061 states and 61896 transitions. Word has length 61 [2021-06-05 19:57:15,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:57:15,208 INFO L482 AbstractCegarLoop]: Abstraction has 15061 states and 61896 transitions. [2021-06-05 19:57:15,208 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:15,208 INFO L276 IsEmpty]: Start isEmpty. Operand 15061 states and 61896 transitions. [2021-06-05 19:57:15,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-05 19:57:15,231 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:57:15,231 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:57:15,231 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 19:57:15,231 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:57:15,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:57:15,232 INFO L82 PathProgramCache]: Analyzing trace with hash 249761395, now seen corresponding path program 1 times [2021-06-05 19:57:15,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:57:15,232 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634595525] [2021-06-05 19:57:15,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:57:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:57:15,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:57:15,327 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:57:15,327 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634595525] [2021-06-05 19:57:15,327 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634595525] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:57:15,327 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:57:15,327 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:57:15,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968632683] [2021-06-05 19:57:15,328 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:57:15,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:57:15,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:57:15,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:57:15,328 INFO L87 Difference]: Start difference. First operand 15061 states and 61896 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:15,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:57:15,539 INFO L93 Difference]: Finished difference Result 21661 states and 88146 transitions. [2021-06-05 19:57:15,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 19:57:15,539 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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 63 [2021-06-05 19:57:15,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:57:15,567 INFO L225 Difference]: With dead ends: 21661 [2021-06-05 19:57:15,567 INFO L226 Difference]: Without dead ends: 11161 [2021-06-05 19:57:15,567 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 104.6ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 19:57:15,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11161 states. [2021-06-05 19:57:15,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11161 to 11161. [2021-06-05 19:57:15,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11161 states, 11160 states have (on average 4.009498207885304) internal successors, (44746), 11160 states have internal predecessors, (44746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:15,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11161 states to 11161 states and 44746 transitions. [2021-06-05 19:57:15,794 INFO L78 Accepts]: Start accepts. Automaton has 11161 states and 44746 transitions. Word has length 63 [2021-06-05 19:57:15,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:57:15,795 INFO L482 AbstractCegarLoop]: Abstraction has 11161 states and 44746 transitions. [2021-06-05 19:57:15,795 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:15,795 INFO L276 IsEmpty]: Start isEmpty. Operand 11161 states and 44746 transitions. [2021-06-05 19:57:15,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-05 19:57:15,812 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:57:15,812 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:57:15,812 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 19:57:15,812 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:57:15,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:57:15,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1783113676, now seen corresponding path program 1 times [2021-06-05 19:57:15,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:57:15,812 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107995494] [2021-06-05 19:57:15,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:57:15,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:57:15,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:57:15,872 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:57:15,872 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107995494] [2021-06-05 19:57:15,872 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107995494] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:57:15,872 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:57:15,872 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 19:57:15,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905608974] [2021-06-05 19:57:15,873 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 19:57:15,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:57:15,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 19:57:15,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 19:57:15,873 INFO L87 Difference]: Start difference. First operand 11161 states and 44746 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:16,064 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2021-06-05 19:57:16,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:57:16,154 INFO L93 Difference]: Finished difference Result 14913 states and 59378 transitions. [2021-06-05 19:57:16,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 19:57:16,154 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 65 [2021-06-05 19:57:16,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:57:16,179 INFO L225 Difference]: With dead ends: 14913 [2021-06-05 19:57:16,180 INFO L226 Difference]: Without dead ends: 10817 [2021-06-05 19:57:16,180 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 203.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 19:57:16,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10817 states. [2021-06-05 19:57:16,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10817 to 10817. [2021-06-05 19:57:16,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10817 states, 10816 states have (on average 3.9927884615384617) internal successors, (43186), 10816 states have internal predecessors, (43186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:16,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10817 states to 10817 states and 43186 transitions. [2021-06-05 19:57:16,391 INFO L78 Accepts]: Start accepts. Automaton has 10817 states and 43186 transitions. Word has length 65 [2021-06-05 19:57:16,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:57:16,391 INFO L482 AbstractCegarLoop]: Abstraction has 10817 states and 43186 transitions. [2021-06-05 19:57:16,391 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:16,391 INFO L276 IsEmpty]: Start isEmpty. Operand 10817 states and 43186 transitions. [2021-06-05 19:57:16,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-05 19:57:16,407 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:57:16,407 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:57:16,407 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 19:57:16,407 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:57:16,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:57:16,407 INFO L82 PathProgramCache]: Analyzing trace with hash 782163266, now seen corresponding path program 1 times [2021-06-05 19:57:16,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:57:16,407 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343632375] [2021-06-05 19:57:16,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:57:16,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:57:16,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:57:16,506 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:57:16,506 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343632375] [2021-06-05 19:57:16,506 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343632375] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:57:16,506 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:57:16,506 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:57:16,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139128788] [2021-06-05 19:57:16,507 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:57:16,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:57:16,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:57:16,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:57:16,508 INFO L87 Difference]: Start difference. First operand 10817 states and 43186 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:16,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:57:16,652 INFO L93 Difference]: Finished difference Result 13241 states and 52158 transitions. [2021-06-05 19:57:16,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 19:57:16,652 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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 66 [2021-06-05 19:57:16,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:57:16,674 INFO L225 Difference]: With dead ends: 13241 [2021-06-05 19:57:16,674 INFO L226 Difference]: Without dead ends: 9401 [2021-06-05 19:57:16,675 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 70.8ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 19:57:16,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9401 states. [2021-06-05 19:57:16,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9401 to 9401. [2021-06-05 19:57:16,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9401 states, 9400 states have (on average 3.923191489361702) internal successors, (36878), 9400 states have internal predecessors, (36878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:17,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9401 states to 9401 states and 36878 transitions. [2021-06-05 19:57:17,008 INFO L78 Accepts]: Start accepts. Automaton has 9401 states and 36878 transitions. Word has length 66 [2021-06-05 19:57:17,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:57:17,008 INFO L482 AbstractCegarLoop]: Abstraction has 9401 states and 36878 transitions. [2021-06-05 19:57:17,008 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:17,009 INFO L276 IsEmpty]: Start isEmpty. Operand 9401 states and 36878 transitions. [2021-06-05 19:57:17,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-06-05 19:57:17,022 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:57:17,022 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:57:17,022 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 19:57:17,023 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:57:17,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:57:17,023 INFO L82 PathProgramCache]: Analyzing trace with hash 191010075, now seen corresponding path program 1 times [2021-06-05 19:57:17,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:57:17,023 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228742341] [2021-06-05 19:57:17,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:57:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:57:17,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:57:17,093 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:57:17,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228742341] [2021-06-05 19:57:17,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228742341] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:57:17,094 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:57:17,094 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 19:57:17,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131934932] [2021-06-05 19:57:17,094 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 19:57:17,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:57:17,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 19:57:17,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 19:57:17,095 INFO L87 Difference]: Start difference. First operand 9401 states and 36878 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:17,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:57:17,241 INFO L93 Difference]: Finished difference Result 9734 states and 37430 transitions. [2021-06-05 19:57:17,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 19:57:17,242 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 67 [2021-06-05 19:57:17,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:57:17,258 INFO L225 Difference]: With dead ends: 9734 [2021-06-05 19:57:17,258 INFO L226 Difference]: Without dead ends: 6854 [2021-06-05 19:57:17,258 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 81.6ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-05 19:57:17,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6854 states. [2021-06-05 19:57:17,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6854 to 6854. [2021-06-05 19:57:17,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6854 states, 6853 states have (on average 3.7970232015175833) internal successors, (26021), 6853 states have internal predecessors, (26021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:17,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6854 states to 6854 states and 26021 transitions. [2021-06-05 19:57:17,379 INFO L78 Accepts]: Start accepts. Automaton has 6854 states and 26021 transitions. Word has length 67 [2021-06-05 19:57:17,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:57:17,379 INFO L482 AbstractCegarLoop]: Abstraction has 6854 states and 26021 transitions. [2021-06-05 19:57:17,379 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:17,379 INFO L276 IsEmpty]: Start isEmpty. Operand 6854 states and 26021 transitions. [2021-06-05 19:57:17,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-06-05 19:57:17,389 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:57:17,389 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:57:17,389 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 19:57:17,389 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:57:17,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:57:17,389 INFO L82 PathProgramCache]: Analyzing trace with hash -620235026, now seen corresponding path program 1 times [2021-06-05 19:57:17,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:57:17,390 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579289076] [2021-06-05 19:57:17,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:57:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:57:17,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:57:17,460 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:57:17,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579289076] [2021-06-05 19:57:17,460 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579289076] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:57:17,460 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:57:17,460 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 19:57:17,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006638646] [2021-06-05 19:57:17,460 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 19:57:17,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:57:17,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 19:57:17,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-05 19:57:17,461 INFO L87 Difference]: Start difference. First operand 6854 states and 26021 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:17,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:57:17,632 INFO L93 Difference]: Finished difference Result 5936 states and 22160 transitions. [2021-06-05 19:57:17,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-05 19:57:17,632 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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 69 [2021-06-05 19:57:17,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:57:17,641 INFO L225 Difference]: With dead ends: 5936 [2021-06-05 19:57:17,642 INFO L226 Difference]: Without dead ends: 4532 [2021-06-05 19:57:17,642 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 112.5ms TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-06-05 19:57:17,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4532 states. [2021-06-05 19:57:17,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4532 to 4532. [2021-06-05 19:57:17,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4532 states, 4531 states have (on average 3.693003751931141) internal successors, (16733), 4531 states have internal predecessors, (16733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:17,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4532 states to 4532 states and 16733 transitions. [2021-06-05 19:57:17,782 INFO L78 Accepts]: Start accepts. Automaton has 4532 states and 16733 transitions. Word has length 69 [2021-06-05 19:57:17,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:57:17,783 INFO L482 AbstractCegarLoop]: Abstraction has 4532 states and 16733 transitions. [2021-06-05 19:57:17,783 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:17,783 INFO L276 IsEmpty]: Start isEmpty. Operand 4532 states and 16733 transitions. [2021-06-05 19:57:17,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-06-05 19:57:17,789 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:57:17,790 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:57:17,790 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 19:57:17,790 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:57:17,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:57:17,790 INFO L82 PathProgramCache]: Analyzing trace with hash 562647919, now seen corresponding path program 1 times [2021-06-05 19:57:17,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:57:17,790 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721585152] [2021-06-05 19:57:17,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:57:17,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:57:17,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:57:17,854 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:57:17,854 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721585152] [2021-06-05 19:57:17,854 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721585152] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:57:17,854 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:57:17,854 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:57:17,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421028596] [2021-06-05 19:57:17,854 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:57:17,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:57:17,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:57:17,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:57:17,855 INFO L87 Difference]: Start difference. First operand 4532 states and 16733 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:17,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:57:17,975 INFO L93 Difference]: Finished difference Result 6605 states and 24478 transitions. [2021-06-05 19:57:17,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 19:57:17,976 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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 71 [2021-06-05 19:57:17,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:57:17,985 INFO L225 Difference]: With dead ends: 6605 [2021-06-05 19:57:17,985 INFO L226 Difference]: Without dead ends: 4116 [2021-06-05 19:57:17,985 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 91.0ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 19:57:17,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4116 states. [2021-06-05 19:57:18,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4116 to 3540. [2021-06-05 19:57:18,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3540 states, 3539 states have (on average 3.631816897428652) internal successors, (12853), 3539 states have internal predecessors, (12853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:18,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3540 states to 3540 states and 12853 transitions. [2021-06-05 19:57:18,051 INFO L78 Accepts]: Start accepts. Automaton has 3540 states and 12853 transitions. Word has length 71 [2021-06-05 19:57:18,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:57:18,052 INFO L482 AbstractCegarLoop]: Abstraction has 3540 states and 12853 transitions. [2021-06-05 19:57:18,052 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:18,052 INFO L276 IsEmpty]: Start isEmpty. Operand 3540 states and 12853 transitions. [2021-06-05 19:57:18,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-06-05 19:57:18,057 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:57:18,057 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:57:18,057 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 19:57:18,057 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:57:18,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:57:18,058 INFO L82 PathProgramCache]: Analyzing trace with hash 242412891, now seen corresponding path program 2 times [2021-06-05 19:57:18,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:57:18,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208761676] [2021-06-05 19:57:18,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:57:18,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:57:18,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:57:18,146 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:57:18,147 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208761676] [2021-06-05 19:57:18,147 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208761676] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:57:18,147 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:57:18,147 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:57:18,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282314677] [2021-06-05 19:57:18,147 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:57:18,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:57:18,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:57:18,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:57:18,152 INFO L87 Difference]: Start difference. First operand 3540 states and 12853 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:18,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:57:18,231 INFO L93 Difference]: Finished difference Result 3378 states and 12259 transitions. [2021-06-05 19:57:18,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 19:57:18,231 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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 71 [2021-06-05 19:57:18,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:57:18,231 INFO L225 Difference]: With dead ends: 3378 [2021-06-05 19:57:18,231 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 19:57:18,232 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 76.5ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 19:57:18,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 19:57:18,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 19:57:18,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:18,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 19:57:18,233 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 71 [2021-06-05 19:57:18,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:57:18,233 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 19:57:18,233 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:57:18,233 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 19:57:18,233 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 19:57:18,233 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 19:57:18,235 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 19:57:18,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 07:57:18 BasicIcfg [2021-06-05 19:57:18,236 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 19:57:18,237 INFO L168 Benchmark]: Toolchain (without parser) took 16237.75 ms. Allocated memory was 396.4 MB in the beginning and 10.3 GB in the end (delta: 9.9 GB). Free memory was 359.1 MB in the beginning and 9.0 GB in the end (delta: -8.6 GB). Peak memory consumption was 1.3 GB. Max. memory is 16.0 GB. [2021-06-05 19:57:18,238 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 396.4 MB. Free memory was 377.0 MB in the beginning and 376.9 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 19:57:18,239 INFO L168 Benchmark]: CACSL2BoogieTranslator took 398.10 ms. Allocated memory is still 396.4 MB. Free memory was 359.0 MB in the beginning and 358.2 MB in the end (delta: 750.7 kB). Peak memory consumption was 8.9 MB. Max. memory is 16.0 GB. [2021-06-05 19:57:18,239 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.97 ms. Allocated memory is still 396.4 MB. Free memory was 358.2 MB in the beginning and 356.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 19:57:18,239 INFO L168 Benchmark]: Boogie Preprocessor took 25.93 ms. Allocated memory is still 396.4 MB. Free memory was 356.1 MB in the beginning and 354.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 19:57:18,243 INFO L168 Benchmark]: RCFGBuilder took 372.99 ms. Allocated memory is still 396.4 MB. Free memory was 354.0 MB in the beginning and 326.8 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-05 19:57:18,244 INFO L168 Benchmark]: TraceAbstraction took 15388.57 ms. Allocated memory was 396.4 MB in the beginning and 10.3 GB in the end (delta: 9.9 GB). Free memory was 326.8 MB in the beginning and 9.0 GB in the end (delta: -8.6 GB). Peak memory consumption was 1.3 GB. Max. memory is 16.0 GB. [2021-06-05 19:57:18,248 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 396.4 MB. Free memory was 377.0 MB in the beginning and 376.9 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 398.10 ms. Allocated memory is still 396.4 MB. Free memory was 359.0 MB in the beginning and 358.2 MB in the end (delta: 750.7 kB). Peak memory consumption was 8.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 45.97 ms. Allocated memory is still 396.4 MB. Free memory was 358.2 MB in the beginning and 356.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 25.93 ms. Allocated memory is still 396.4 MB. Free memory was 356.1 MB in the beginning and 354.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 372.99 ms. Allocated memory is still 396.4 MB. Free memory was 354.0 MB in the beginning and 326.8 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 15388.57 ms. Allocated memory was 396.4 MB in the beginning and 10.3 GB in the end (delta: 9.9 GB). Free memory was 326.8 MB in the beginning and 9.0 GB in the end (delta: -8.6 GB). Peak memory consumption was 1.3 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 128 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15318.1ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 621.4ms, AutomataDifference: 3614.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5299.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1397 SDtfs, 2343 SDslu, 5035 SDs, 0 SdLazy, 600 SolverSat, 118 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 367.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1275.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=51816occurred in iteration=0, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 4313.9ms AutomataMinimizationTime, 11 MinimizatonAttempts, 960 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 24.5ms SsaConstructionTime, 188.9ms SatisfiabilityAnalysisTime, 1079.5ms InterpolantComputationTime, 709 NumberOfCodeBlocks, 709 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 698 ConstructedInterpolants, 0 QuantifiedInterpolants, 3718 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...