/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-344d29da17dfcedfb91d6006a5dbd12b556a868d-344d29d [2021-02-16 17:25:55,908 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-16 17:25:55,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-16 17:25:55,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-16 17:25:55,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-16 17:25:55,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-16 17:25:55,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-16 17:25:55,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-16 17:25:55,988 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-16 17:25:55,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-16 17:25:55,998 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-16 17:25:55,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-16 17:25:56,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-16 17:25:56,004 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-16 17:25:56,005 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-16 17:25:56,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-16 17:25:56,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-16 17:25:56,009 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-16 17:25:56,011 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-16 17:25:56,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-16 17:25:56,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-16 17:25:56,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-16 17:25:56,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-16 17:25:56,020 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-16 17:25:56,023 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-16 17:25:56,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-16 17:25:56,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-16 17:25:56,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-16 17:25:56,037 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 [2021-02-16 17:25:56,063 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-16 17:25:56,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-16 17:25:56,065 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-16 17:25:56,065 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-16 17:25:56,066 INFO L138 SettingsManager]: * Use SBE=true [2021-02-16 17:25:56,066 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-16 17:25:56,066 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-16 17:25:56,066 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-16 17:25:56,067 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-16 17:25:56,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-16 17:25:56,067 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-16 17:25:56,067 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-16 17:25:56,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-16 17:25:56,068 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-16 17:25:56,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-16 17:25:56,068 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-16 17:25:56,068 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-16 17:25:56,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-16 17:25:56,069 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-16 17:25:56,069 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-16 17:25:56,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-16 17:25:56,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-16 17:25:56,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-16 17:25:56,070 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-16 17:25:56,070 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-16 17:25:56,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-16 17:25:56,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-16 17:25:56,071 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-16 17:25:56,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-16 17:25:56,071 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-16 17:25:56,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-16 17:25:56,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-16 17:25:56,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-16 17:25:56,516 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-16 17:25:56,519 INFO L275 PluginConnector]: CDTParser initialized [2021-02-16 17:25:56,520 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2021-02-16 17:25:56,613 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09c21f1bf/7dec5e54c40744dcbf44c4231d0a2506/FLAG90717b809 [2021-02-16 17:25:57,407 INFO L306 CDTParser]: Found 1 translation units. [2021-02-16 17:25:57,409 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2021-02-16 17:25:57,435 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09c21f1bf/7dec5e54c40744dcbf44c4231d0a2506/FLAG90717b809 [2021-02-16 17:25:57,653 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09c21f1bf/7dec5e54c40744dcbf44c4231d0a2506 [2021-02-16 17:25:57,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-16 17:25:57,672 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-02-16 17:25:57,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-16 17:25:57,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-16 17:25:57,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-16 17:25:57,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 05:25:57" (1/1) ... [2021-02-16 17:25:57,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bc939d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:57, skipping insertion in model container [2021-02-16 17:25:57,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 05:25:57" (1/1) ... [2021-02-16 17:25:57,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-16 17:25:57,767 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-16 17:25:57,936 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i[950,963] [2021-02-16 17:25:58,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-16 17:25:58,148 INFO L203 MainTranslator]: Completed pre-run [2021-02-16 17:25:58,163 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i[950,963] [2021-02-16 17:25:58,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-16 17:25:58,324 INFO L208 MainTranslator]: Completed translation [2021-02-16 17:25:58,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:58 WrapperNode [2021-02-16 17:25:58,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-16 17:25:58,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-16 17:25:58,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-16 17:25:58,331 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-16 17:25:58,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:58" (1/1) ... [2021-02-16 17:25:58,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:58" (1/1) ... [2021-02-16 17:25:58,410 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-16 17:25:58,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-16 17:25:58,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-16 17:25:58,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-16 17:25:58,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:58" (1/1) ... [2021-02-16 17:25:58,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:58" (1/1) ... [2021-02-16 17:25:58,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:58" (1/1) ... [2021-02-16 17:25:58,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:58" (1/1) ... [2021-02-16 17:25:58,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:58" (1/1) ... [2021-02-16 17:25:58,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:58" (1/1) ... [2021-02-16 17:25:58,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:58" (1/1) ... [2021-02-16 17:25:58,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-16 17:25:58,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-16 17:25:58,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-16 17:25:58,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-16 17:25:58,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:58" (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 [2021-02-16 17:25:58,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-16 17:25:58,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-02-16 17:25:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-16 17:25:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-16 17:25:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-02-16 17:25:58,601 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-02-16 17:25:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-02-16 17:25:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-02-16 17:25:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-02-16 17:25:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-02-16 17:25:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-02-16 17:25:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-02-16 17:25:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-16 17:25:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-02-16 17:25:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-16 17:25:58,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-16 17:25:58,606 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-16 17:25:59,183 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-16 17:25:59,183 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-02-16 17:25:59,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 05:25:59 BoogieIcfgContainer [2021-02-16 17:25:59,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-16 17:25:59,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-16 17:25:59,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-16 17:25:59,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-16 17:25:59,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 05:25:57" (1/3) ... [2021-02-16 17:25:59,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21eb9a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 05:25:59, skipping insertion in model container [2021-02-16 17:25:59,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:58" (2/3) ... [2021-02-16 17:25:59,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21eb9a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 05:25:59, skipping insertion in model container [2021-02-16 17:25:59,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 05:25:59" (3/3) ... [2021-02-16 17:25:59,198 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.oepc.i [2021-02-16 17:25:59,206 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-16 17:25:59,207 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-16 17:25:59,212 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-16 17:25:59,213 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-16 17:25:59,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,275 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,275 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,276 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,276 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,276 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,276 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,277 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,277 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,277 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,277 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,277 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,278 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,278 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,278 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,278 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,278 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,278 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,279 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,284 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,285 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,286 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,286 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,287 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,287 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,287 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,287 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,288 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,288 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,288 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,289 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,289 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,289 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,290 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,290 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,291 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,291 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,291 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,291 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,291 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,291 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,291 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,292 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,292 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,292 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,292 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,292 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,296 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,297 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,297 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,304 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,304 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,304 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,305 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,310 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,311 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,311 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,311 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,316 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,316 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,317 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,317 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:59,320 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-02-16 17:25:59,342 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-02-16 17:25:59,378 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-16 17:25:59,379 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-16 17:25:59,379 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-16 17:25:59,379 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-16 17:25:59,379 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-16 17:25:59,379 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-16 17:25:59,380 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-16 17:25:59,380 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-16 17:25:59,393 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 97 places, 86 transitions, 192 flow [2021-02-16 17:26:08,004 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 49020 states, 49018 states have (on average 4.388510343139255) internal successors, (215116), 49019 states have internal predecessors, (215116), 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) [2021-02-16 17:26:08,083 INFO L276 IsEmpty]: Start isEmpty. Operand has 49020 states, 49018 states have (on average 4.388510343139255) internal successors, (215116), 49019 states have internal predecessors, (215116), 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) [2021-02-16 17:26:08,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-02-16 17:26:08,222 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:26:08,223 INFO L505 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] [2021-02-16 17:26:08,223 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:26:08,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:26:08,231 INFO L82 PathProgramCache]: Analyzing trace with hash 117794534, now seen corresponding path program 1 times [2021-02-16 17:26:08,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:26:08,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803458103] [2021-02-16 17:26:08,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:26:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:26:08,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:08,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:08,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:08,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:26:08,893 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:26:08,895 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:26:08,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:08,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:26:08,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:08,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:26:08,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:08,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:08,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:26:08,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803458103] [2021-02-16 17:26:08,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:26:08,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-16 17:26:08,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607753143] [2021-02-16 17:26:08,983 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-16 17:26:08,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:26:08,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-16 17:26:08,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-16 17:26:09,068 INFO L87 Difference]: Start difference. First operand has 49020 states, 49018 states have (on average 4.388510343139255) internal successors, (215116), 49019 states have internal predecessors, (215116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2021-02-16 17:26:10,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:26:10,604 INFO L93 Difference]: Finished difference Result 66408 states and 285208 transitions. [2021-02-16 17:26:10,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-16 17:26:10,606 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 44 [2021-02-16 17:26:10,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:26:11,077 INFO L225 Difference]: With dead ends: 66408 [2021-02-16 17:26:11,077 INFO L226 Difference]: Without dead ends: 21300 [2021-02-16 17:26:11,079 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-02-16 17:26:11,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21300 states. [2021-02-16 17:26:12,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21300 to 21300. [2021-02-16 17:26:12,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21300 states, 21299 states have (on average 4.212216535987605) internal successors, (89716), 21299 states have internal predecessors, (89716), 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) [2021-02-16 17:26:12,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21300 states to 21300 states and 89716 transitions. [2021-02-16 17:26:12,901 INFO L78 Accepts]: Start accepts. Automaton has 21300 states and 89716 transitions. Word has length 44 [2021-02-16 17:26:12,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:26:12,903 INFO L480 AbstractCegarLoop]: Abstraction has 21300 states and 89716 transitions. [2021-02-16 17:26:12,904 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2021-02-16 17:26:12,904 INFO L276 IsEmpty]: Start isEmpty. Operand 21300 states and 89716 transitions. [2021-02-16 17:26:12,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-02-16 17:26:12,951 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:26:12,951 INFO L505 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] [2021-02-16 17:26:12,952 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-16 17:26:12,952 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:26:12,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:26:12,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1196148409, now seen corresponding path program 1 times [2021-02-16 17:26:12,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:26:12,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461419341] [2021-02-16 17:26:12,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:26:13,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:26:13,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:13,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:13,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:13,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:26:13,097 WARN L141 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-02-16 17:26:13,099 WARN L147 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size 17 [2021-02-16 17:26:13,112 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:26:13,114 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:26:13,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:13,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:26:13,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:13,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:26:13,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:13,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:13,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:26:13,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461419341] [2021-02-16 17:26:13,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:26:13,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-16 17:26:13,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882477043] [2021-02-16 17:26:13,172 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-16 17:26:13,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:26:13,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-16 17:26:13,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-16 17:26:13,174 INFO L87 Difference]: Start difference. First operand 21300 states and 89716 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:26:14,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:26:14,394 INFO L93 Difference]: Finished difference Result 44856 states and 186816 transitions. [2021-02-16 17:26:14,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-16 17:26:14,399 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-02-16 17:26:14,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:26:14,689 INFO L225 Difference]: With dead ends: 44856 [2021-02-16 17:26:14,689 INFO L226 Difference]: Without dead ends: 31896 [2021-02-16 17:26:14,692 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-02-16 17:26:14,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31896 states. [2021-02-16 17:26:16,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31896 to 26424. [2021-02-16 17:26:16,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26424 states, 26423 states have (on average 4.162888392688188) internal successors, (109996), 26423 states have internal predecessors, (109996), 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) [2021-02-16 17:26:16,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26424 states to 26424 states and 109996 transitions. [2021-02-16 17:26:16,308 INFO L78 Accepts]: Start accepts. Automaton has 26424 states and 109996 transitions. Word has length 46 [2021-02-16 17:26:16,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:26:16,308 INFO L480 AbstractCegarLoop]: Abstraction has 26424 states and 109996 transitions. [2021-02-16 17:26:16,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:26:16,309 INFO L276 IsEmpty]: Start isEmpty. Operand 26424 states and 109996 transitions. [2021-02-16 17:26:16,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-02-16 17:26:16,770 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:26:16,771 INFO L505 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] [2021-02-16 17:26:16,771 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-16 17:26:16,771 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:26:16,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:26:16,772 INFO L82 PathProgramCache]: Analyzing trace with hash -29327456, now seen corresponding path program 1 times [2021-02-16 17:26:16,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:26:16,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788359980] [2021-02-16 17:26:16,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:26:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:26:16,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:16,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:16,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:16,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:26:16,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:16,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:26:16,941 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:26:16,944 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:26:16,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:16,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:26:16,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:16,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:26:16,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:16,986 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:16,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:26:16,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788359980] [2021-02-16 17:26:16,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:26:16,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-16 17:26:16,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241603689] [2021-02-16 17:26:16,993 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-16 17:26:16,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:26:16,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-16 17:26:16,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-16 17:26:16,996 INFO L87 Difference]: Start difference. First operand 26424 states and 109996 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:26:17,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:26:17,451 INFO L93 Difference]: Finished difference Result 37784 states and 155550 transitions. [2021-02-16 17:26:17,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-16 17:26:17,453 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-02-16 17:26:17,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:26:17,538 INFO L225 Difference]: With dead ends: 37784 [2021-02-16 17:26:17,538 INFO L226 Difference]: Without dead ends: 18344 [2021-02-16 17:26:17,539 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-02-16 17:26:18,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18344 states. [2021-02-16 17:26:18,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18344 to 18344. [2021-02-16 17:26:18,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18344 states, 18343 states have (on average 4.070762688764106) internal successors, (74670), 18343 states have internal predecessors, (74670), 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) [2021-02-16 17:26:18,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18344 states to 18344 states and 74670 transitions. [2021-02-16 17:26:18,931 INFO L78 Accepts]: Start accepts. Automaton has 18344 states and 74670 transitions. Word has length 48 [2021-02-16 17:26:18,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:26:18,936 INFO L480 AbstractCegarLoop]: Abstraction has 18344 states and 74670 transitions. [2021-02-16 17:26:18,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:26:18,941 INFO L276 IsEmpty]: Start isEmpty. Operand 18344 states and 74670 transitions. [2021-02-16 17:26:19,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-02-16 17:26:19,009 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:26:19,010 INFO L505 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] [2021-02-16 17:26:19,010 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-16 17:26:19,011 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:26:19,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:26:19,013 INFO L82 PathProgramCache]: Analyzing trace with hash -321636280, now seen corresponding path program 1 times [2021-02-16 17:26:19,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:26:19,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985339357] [2021-02-16 17:26:19,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:26:19,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:26:19,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:19,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:19,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:19,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:26:19,155 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:26:19,159 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:26:19,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:19,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:26:19,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:19,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:26:19,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:19,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:19,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:26:19,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985339357] [2021-02-16 17:26:19,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:26:19,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-16 17:26:19,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270022297] [2021-02-16 17:26:19,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-16 17:26:19,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:26:19,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-16 17:26:19,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-16 17:26:19,217 INFO L87 Difference]: Start difference. First operand 18344 states and 74670 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:26:19,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:26:19,542 INFO L93 Difference]: Finished difference Result 20984 states and 84922 transitions. [2021-02-16 17:26:19,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-16 17:26:19,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-02-16 17:26:19,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:26:19,620 INFO L225 Difference]: With dead ends: 20984 [2021-02-16 17:26:19,620 INFO L226 Difference]: Without dead ends: 17624 [2021-02-16 17:26:19,621 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-02-16 17:26:20,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17624 states. [2021-02-16 17:26:20,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17624 to 17624. [2021-02-16 17:26:20,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17624 states, 17623 states have (on average 4.054814730749588) internal successors, (71458), 17623 states have internal predecessors, (71458), 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) [2021-02-16 17:26:20,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17624 states to 17624 states and 71458 transitions. [2021-02-16 17:26:20,694 INFO L78 Accepts]: Start accepts. Automaton has 17624 states and 71458 transitions. Word has length 48 [2021-02-16 17:26:20,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:26:20,694 INFO L480 AbstractCegarLoop]: Abstraction has 17624 states and 71458 transitions. [2021-02-16 17:26:20,695 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:26:20,695 INFO L276 IsEmpty]: Start isEmpty. Operand 17624 states and 71458 transitions. [2021-02-16 17:26:20,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-02-16 17:26:20,742 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:26:20,742 INFO L505 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] [2021-02-16 17:26:20,742 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-16 17:26:20,742 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:26:20,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:26:20,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1452665303, now seen corresponding path program 1 times [2021-02-16 17:26:20,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:26:20,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927116292] [2021-02-16 17:26:20,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:26:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:26:20,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:20,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:20,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:20,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:26:20,865 WARN L141 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-02-16 17:26:20,870 WARN L147 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size 17 [2021-02-16 17:26:20,882 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:26:20,883 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:26:20,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:20,902 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:26:20,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:20,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:26:20,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:20,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:20,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:26:20,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927116292] [2021-02-16 17:26:20,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:26:20,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-16 17:26:20,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976538088] [2021-02-16 17:26:20,930 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-16 17:26:20,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:26:20,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-16 17:26:20,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-16 17:26:20,932 INFO L87 Difference]: Start difference. First operand 17624 states and 71458 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2021-02-16 17:26:21,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:26:21,597 INFO L93 Difference]: Finished difference Result 22104 states and 88562 transitions. [2021-02-16 17:26:21,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-16 17:26:21,598 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 50 [2021-02-16 17:26:21,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:26:21,671 INFO L225 Difference]: With dead ends: 22104 [2021-02-16 17:26:21,671 INFO L226 Difference]: Without dead ends: 18584 [2021-02-16 17:26:21,672 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-02-16 17:26:21,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18584 states. [2021-02-16 17:26:22,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18584 to 15768. [2021-02-16 17:26:22,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15768 states, 15767 states have (on average 4.036912538846959) internal successors, (63650), 15767 states have internal predecessors, (63650), 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) [2021-02-16 17:26:22,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15768 states to 15768 states and 63650 transitions. [2021-02-16 17:26:22,259 INFO L78 Accepts]: Start accepts. Automaton has 15768 states and 63650 transitions. Word has length 50 [2021-02-16 17:26:22,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:26:22,259 INFO L480 AbstractCegarLoop]: Abstraction has 15768 states and 63650 transitions. [2021-02-16 17:26:22,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2021-02-16 17:26:22,260 INFO L276 IsEmpty]: Start isEmpty. Operand 15768 states and 63650 transitions. [2021-02-16 17:26:22,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-02-16 17:26:22,298 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:26:22,298 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:26:22,298 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-16 17:26:22,299 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:26:22,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:26:22,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1341204016, now seen corresponding path program 1 times [2021-02-16 17:26:22,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:26:22,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020095697] [2021-02-16 17:26:22,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:26:22,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:26:22,345 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:22,345 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:22,346 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:22,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:26:22,351 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:26:22,352 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:26:22,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:22,372 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:26:22,381 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:22,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:26:22,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:22,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:22,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:26:22,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020095697] [2021-02-16 17:26:22,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:26:22,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-16 17:26:22,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197946587] [2021-02-16 17:26:22,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-16 17:26:22,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:26:22,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-16 17:26:22,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-16 17:26:22,402 INFO L87 Difference]: Start difference. First operand 15768 states and 63650 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:26:22,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:26:22,946 INFO L93 Difference]: Finished difference Result 23064 states and 92210 transitions. [2021-02-16 17:26:22,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-16 17:26:22,954 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-02-16 17:26:22,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:26:23,012 INFO L225 Difference]: With dead ends: 23064 [2021-02-16 17:26:23,012 INFO L226 Difference]: Without dead ends: 16280 [2021-02-16 17:26:23,015 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-02-16 17:26:23,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16280 states. [2021-02-16 17:26:23,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16280 to 12920. [2021-02-16 17:26:23,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12920 states, 12919 states have (on average 3.996748974378822) internal successors, (51634), 12919 states have internal predecessors, (51634), 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) [2021-02-16 17:26:23,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12920 states to 12920 states and 51634 transitions. [2021-02-16 17:26:23,452 INFO L78 Accepts]: Start accepts. Automaton has 12920 states and 51634 transitions. Word has length 51 [2021-02-16 17:26:23,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:26:23,452 INFO L480 AbstractCegarLoop]: Abstraction has 12920 states and 51634 transitions. [2021-02-16 17:26:23,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:26:23,452 INFO L276 IsEmpty]: Start isEmpty. Operand 12920 states and 51634 transitions. [2021-02-16 17:26:23,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-16 17:26:23,471 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:26:23,472 INFO L505 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] [2021-02-16 17:26:23,472 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-16 17:26:23,472 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:26:23,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:26:23,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1041427222, now seen corresponding path program 1 times [2021-02-16 17:26:23,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:26:23,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959117343] [2021-02-16 17:26:23,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:26:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:26:23,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:23,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:23,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:23,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:26:23,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:23,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:26:23,543 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:26:23,544 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:26:23,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:23,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:26:23,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:23,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:26:23,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:23,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:23,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:26:23,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959117343] [2021-02-16 17:26:23,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:26:23,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-16 17:26:23,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058804765] [2021-02-16 17:26:23,597 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-16 17:26:23,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:26:23,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-16 17:26:23,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-16 17:26:23,598 INFO L87 Difference]: Start difference. First operand 12920 states and 51634 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:26:23,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:26:23,826 INFO L93 Difference]: Finished difference Result 20440 states and 81270 transitions. [2021-02-16 17:26:23,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-16 17:26:23,826 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-02-16 17:26:23,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:26:23,858 INFO L225 Difference]: With dead ends: 20440 [2021-02-16 17:26:23,858 INFO L226 Difference]: Without dead ends: 11340 [2021-02-16 17:26:23,858 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-02-16 17:26:24,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11340 states. [2021-02-16 17:26:24,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11340 to 11340. [2021-02-16 17:26:24,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11340 states, 11339 states have (on average 3.9671928741511597) internal successors, (44984), 11339 states have internal predecessors, (44984), 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) [2021-02-16 17:26:24,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11340 states to 11340 states and 44984 transitions. [2021-02-16 17:26:24,472 INFO L78 Accepts]: Start accepts. Automaton has 11340 states and 44984 transitions. Word has length 52 [2021-02-16 17:26:24,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:26:24,472 INFO L480 AbstractCegarLoop]: Abstraction has 11340 states and 44984 transitions. [2021-02-16 17:26:24,472 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:26:24,472 INFO L276 IsEmpty]: Start isEmpty. Operand 11340 states and 44984 transitions. [2021-02-16 17:26:24,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-16 17:26:24,493 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:26:24,493 INFO L505 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] [2021-02-16 17:26:24,494 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-16 17:26:24,494 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:26:24,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:26:24,495 INFO L82 PathProgramCache]: Analyzing trace with hash 332835552, now seen corresponding path program 2 times [2021-02-16 17:26:24,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:26:24,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230864486] [2021-02-16 17:26:24,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:26:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:26:24,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:24,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:24,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:24,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:26:24,554 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-02-16 17:26:24,555 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size 23 [2021-02-16 17:26:24,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:24,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:26:24,587 WARN L141 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-02-16 17:26:24,589 WARN L147 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size 9 [2021-02-16 17:26:24,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:24,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:24,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:26:24,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230864486] [2021-02-16 17:26:24,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:26:24,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-16 17:26:24,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588633016] [2021-02-16 17:26:24,617 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-16 17:26:24,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:26:24,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-16 17:26:24,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-16 17:26:24,618 INFO L87 Difference]: Start difference. First operand 11340 states and 44984 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:26:24,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:26:24,856 INFO L93 Difference]: Finished difference Result 15712 states and 61802 transitions. [2021-02-16 17:26:24,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-16 17:26:24,857 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-02-16 17:26:24,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:26:24,888 INFO L225 Difference]: With dead ends: 15712 [2021-02-16 17:26:24,888 INFO L226 Difference]: Without dead ends: 10976 [2021-02-16 17:26:24,888 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-02-16 17:26:24,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10976 states. [2021-02-16 17:26:25,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10976 to 10976. [2021-02-16 17:26:25,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10976 states, 10975 states have (on average 3.9484282460136675) internal successors, (43334), 10975 states have internal predecessors, (43334), 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) [2021-02-16 17:26:25,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10976 states to 10976 states and 43334 transitions. [2021-02-16 17:26:25,248 INFO L78 Accepts]: Start accepts. Automaton has 10976 states and 43334 transitions. Word has length 52 [2021-02-16 17:26:25,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:26:25,248 INFO L480 AbstractCegarLoop]: Abstraction has 10976 states and 43334 transitions. [2021-02-16 17:26:25,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:26:25,249 INFO L276 IsEmpty]: Start isEmpty. Operand 10976 states and 43334 transitions. [2021-02-16 17:26:25,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-16 17:26:25,271 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:26:25,271 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:26:25,271 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-16 17:26:25,272 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:26:25,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:26:25,272 INFO L82 PathProgramCache]: Analyzing trace with hash -309184454, now seen corresponding path program 1 times [2021-02-16 17:26:25,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:26:25,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563204785] [2021-02-16 17:26:25,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:26:25,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:26:25,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:25,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:25,325 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:25,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:26:25,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:25,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:26:25,335 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-02-16 17:26:25,336 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size 23 [2021-02-16 17:26:25,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:25,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:26:25,367 WARN L141 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-02-16 17:26:25,368 WARN L147 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size 9 [2021-02-16 17:26:25,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:25,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:25,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:26:25,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563204785] [2021-02-16 17:26:25,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:26:25,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-16 17:26:25,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277998855] [2021-02-16 17:26:25,388 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-16 17:26:25,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:26:25,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-16 17:26:25,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-16 17:26:25,389 INFO L87 Difference]: Start difference. First operand 10976 states and 43334 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:26:25,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:26:25,830 INFO L93 Difference]: Finished difference Result 13874 states and 53915 transitions. [2021-02-16 17:26:25,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-16 17:26:25,831 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-02-16 17:26:25,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:26:25,864 INFO L225 Difference]: With dead ends: 13874 [2021-02-16 17:26:25,864 INFO L226 Difference]: Without dead ends: 9410 [2021-02-16 17:26:25,865 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-02-16 17:26:25,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9410 states. [2021-02-16 17:26:26,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9410 to 9410. [2021-02-16 17:26:26,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9410 states, 9409 states have (on average 3.8687426931661175) internal successors, (36401), 9409 states have internal predecessors, (36401), 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) [2021-02-16 17:26:26,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9410 states to 9410 states and 36401 transitions. [2021-02-16 17:26:26,089 INFO L78 Accepts]: Start accepts. Automaton has 9410 states and 36401 transitions. Word has length 53 [2021-02-16 17:26:26,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:26:26,089 INFO L480 AbstractCegarLoop]: Abstraction has 9410 states and 36401 transitions. [2021-02-16 17:26:26,090 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:26:26,090 INFO L276 IsEmpty]: Start isEmpty. Operand 9410 states and 36401 transitions. [2021-02-16 17:26:26,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-02-16 17:26:26,106 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:26:26,106 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:26:26,106 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-16 17:26:26,106 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:26:26,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:26:26,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1654841013, now seen corresponding path program 1 times [2021-02-16 17:26:26,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:26:26,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771012830] [2021-02-16 17:26:26,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:26:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:26:26,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:26,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:26,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:26,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:26:26,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:26,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:26:26,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:26,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:26:26,189 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-02-16 17:26:26,190 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size 23 [2021-02-16 17:26:26,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:26,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:26:26,227 WARN L141 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-02-16 17:26:26,228 WARN L147 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size 9 [2021-02-16 17:26:26,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:26,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:26,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:26:26,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771012830] [2021-02-16 17:26:26,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:26:26,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-16 17:26:26,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71856127] [2021-02-16 17:26:26,245 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-16 17:26:26,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:26:26,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-16 17:26:26,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-16 17:26:26,246 INFO L87 Difference]: Start difference. First operand 9410 states and 36401 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:26:26,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:26:26,540 INFO L93 Difference]: Finished difference Result 9887 states and 37379 transitions. [2021-02-16 17:26:26,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-16 17:26:26,541 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-02-16 17:26:26,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:26:26,565 INFO L225 Difference]: With dead ends: 9887 [2021-02-16 17:26:26,566 INFO L226 Difference]: Without dead ends: 6503 [2021-02-16 17:26:26,566 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-02-16 17:26:26,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6503 states. [2021-02-16 17:26:26,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6503 to 6503. [2021-02-16 17:26:26,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6503 states, 6502 states have (on average 3.716394955398339) internal successors, (24164), 6502 states have internal predecessors, (24164), 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) [2021-02-16 17:26:26,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6503 states to 6503 states and 24164 transitions. [2021-02-16 17:26:26,775 INFO L78 Accepts]: Start accepts. Automaton has 6503 states and 24164 transitions. Word has length 54 [2021-02-16 17:26:26,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:26:26,775 INFO L480 AbstractCegarLoop]: Abstraction has 6503 states and 24164 transitions. [2021-02-16 17:26:26,775 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:26:26,775 INFO L276 IsEmpty]: Start isEmpty. Operand 6503 states and 24164 transitions. [2021-02-16 17:26:26,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-02-16 17:26:26,791 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:26:26,791 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:26:26,791 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-16 17:26:26,791 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:26:26,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:26:26,792 INFO L82 PathProgramCache]: Analyzing trace with hash 170498356, now seen corresponding path program 1 times [2021-02-16 17:26:26,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:26:26,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878667213] [2021-02-16 17:26:26,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:26:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:26:26,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:26,870 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:26,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:26,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:26:26,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:26,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:26:26,880 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:26:26,881 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:26:26,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:26,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:26:26,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:26,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:26:26,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:26,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:26,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:26:26,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878667213] [2021-02-16 17:26:26,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:26:26,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-16 17:26:26,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422969411] [2021-02-16 17:26:26,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-16 17:26:26,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:26:26,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-16 17:26:26,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-16 17:26:26,930 INFO L87 Difference]: Start difference. First operand 6503 states and 24164 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:26:27,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:26:27,097 INFO L93 Difference]: Finished difference Result 8318 states and 30579 transitions. [2021-02-16 17:26:27,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-16 17:26:27,098 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-02-16 17:26:27,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:26:27,111 INFO L225 Difference]: With dead ends: 8318 [2021-02-16 17:26:27,111 INFO L226 Difference]: Without dead ends: 4138 [2021-02-16 17:26:27,111 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-02-16 17:26:27,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4138 states. [2021-02-16 17:26:27,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4138 to 3652. [2021-02-16 17:26:27,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 3651 states have (on average 3.528074500136949) internal successors, (12881), 3651 states have internal predecessors, (12881), 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) [2021-02-16 17:26:27,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 12881 transitions. [2021-02-16 17:26:27,226 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 12881 transitions. Word has length 56 [2021-02-16 17:26:27,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:26:27,226 INFO L480 AbstractCegarLoop]: Abstraction has 3652 states and 12881 transitions. [2021-02-16 17:26:27,226 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:26:27,226 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 12881 transitions. [2021-02-16 17:26:27,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-02-16 17:26:27,232 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:26:27,232 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:26:27,232 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-16 17:26:27,232 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:26:27,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:26:27,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1354415800, now seen corresponding path program 1 times [2021-02-16 17:26:27,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:26:27,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280123568] [2021-02-16 17:26:27,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:26:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:26:27,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:27,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:27,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:27,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:26:27,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:27,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:26:27,281 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:26:27,282 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:26:27,428 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2021-02-16 17:26:27,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:27,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:26:27,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:27,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:26:27,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:27,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:27,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:26:27,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280123568] [2021-02-16 17:26:27,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:26:27,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-16 17:26:27,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637184116] [2021-02-16 17:26:27,458 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-16 17:26:27,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:26:27,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-16 17:26:27,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-16 17:26:27,460 INFO L87 Difference]: Start difference. First operand 3652 states and 12881 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:26:27,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:26:27,599 INFO L93 Difference]: Finished difference Result 4941 states and 17283 transitions. [2021-02-16 17:26:27,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-16 17:26:27,600 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-02-16 17:26:27,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:26:27,612 INFO L225 Difference]: With dead ends: 4941 [2021-02-16 17:26:27,612 INFO L226 Difference]: Without dead ends: 4010 [2021-02-16 17:26:27,613 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-02-16 17:26:27,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4010 states. [2021-02-16 17:26:27,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4010 to 3524. [2021-02-16 17:26:27,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3524 states, 3523 states have (on average 3.5200113539596933) internal successors, (12401), 3523 states have internal predecessors, (12401), 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) [2021-02-16 17:26:27,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3524 states to 3524 states and 12401 transitions. [2021-02-16 17:26:27,704 INFO L78 Accepts]: Start accepts. Automaton has 3524 states and 12401 transitions. Word has length 56 [2021-02-16 17:26:27,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:26:27,705 INFO L480 AbstractCegarLoop]: Abstraction has 3524 states and 12401 transitions. [2021-02-16 17:26:27,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:26:27,705 INFO L276 IsEmpty]: Start isEmpty. Operand 3524 states and 12401 transitions. [2021-02-16 17:26:27,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-02-16 17:26:27,710 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:26:27,710 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:26:27,710 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-16 17:26:27,710 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:26:27,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:26:27,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1491276790, now seen corresponding path program 2 times [2021-02-16 17:26:27,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:26:27,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462332718] [2021-02-16 17:26:27,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:26:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:26:27,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:27,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:27,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:27,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:26:27,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:27,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:26:27,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:27,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:26:27,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:27,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:26:27,804 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-02-16 17:26:27,804 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size 23 [2021-02-16 17:26:27,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:27,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:26:27,836 WARN L141 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-02-16 17:26:27,837 WARN L147 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size 9 [2021-02-16 17:26:27,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:26:27,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:26:27,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:26:27,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462332718] [2021-02-16 17:26:27,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:26:27,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-16 17:26:27,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881802727] [2021-02-16 17:26:27,854 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-16 17:26:27,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:26:27,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-16 17:26:27,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-02-16 17:26:27,855 INFO L87 Difference]: Start difference. First operand 3524 states and 12401 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:26:28,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:26:28,003 INFO L93 Difference]: Finished difference Result 2228 states and 7568 transitions. [2021-02-16 17:26:28,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-16 17:26:28,003 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-02-16 17:26:28,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:26:28,003 INFO L225 Difference]: With dead ends: 2228 [2021-02-16 17:26:28,004 INFO L226 Difference]: Without dead ends: 0 [2021-02-16 17:26:28,004 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-02-16 17:26:28,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-16 17:26:28,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-16 17:26:28,005 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) [2021-02-16 17:26:28,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-16 17:26:28,005 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 56 [2021-02-16 17:26:28,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:26:28,005 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-16 17:26:28,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:26:28,005 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-16 17:26:28,005 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-16 17:26:28,006 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-16 17:26:28,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 05:26:28 BasicIcfg [2021-02-16 17:26:28,011 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-16 17:26:28,012 INFO L168 Benchmark]: Toolchain (without parser) took 30353.28 ms. Allocated memory was 302.0 MB in the beginning and 10.8 GB in the end (delta: 10.4 GB). Free memory was 276.1 MB in the beginning and 9.6 GB in the end (delta: -9.3 GB). Peak memory consumption was 1.2 GB. Max. memory is 16.0 GB. [2021-02-16 17:26:28,012 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-02-16 17:26:28,013 INFO L168 Benchmark]: CACSL2BoogieTranslator took 653.48 ms. Allocated memory is still 302.0 MB. Free memory was 275.0 MB in the beginning and 243.6 MB in the end (delta: 31.3 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-02-16 17:26:28,013 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.10 ms. Allocated memory is still 302.0 MB. Free memory was 243.6 MB in the beginning and 284.4 MB in the end (delta: -40.7 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. [2021-02-16 17:26:28,013 INFO L168 Benchmark]: Boogie Preprocessor took 60.31 ms. Allocated memory is still 302.0 MB. Free memory was 284.4 MB in the beginning and 282.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-16 17:26:28,014 INFO L168 Benchmark]: RCFGBuilder took 713.69 ms. Allocated memory is still 302.0 MB. Free memory was 282.3 MB in the beginning and 258.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-02-16 17:26:28,014 INFO L168 Benchmark]: TraceAbstraction took 28822.41 ms. Allocated memory was 302.0 MB in the beginning and 10.8 GB in the end (delta: 10.4 GB). Free memory was 258.1 MB in the beginning and 9.6 GB in the end (delta: -9.3 GB). Peak memory consumption was 1.1 GB. Max. memory is 16.0 GB. [2021-02-16 17:26:28,016 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 653.48 ms. Allocated memory is still 302.0 MB. Free memory was 275.0 MB in the beginning and 243.6 MB in the end (delta: 31.3 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 80.10 ms. Allocated memory is still 302.0 MB. Free memory was 243.6 MB in the beginning and 284.4 MB in the end (delta: -40.7 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 60.31 ms. Allocated memory is still 302.0 MB. Free memory was 284.4 MB in the beginning and 282.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 713.69 ms. Allocated memory is still 302.0 MB. Free memory was 282.3 MB in the beginning and 258.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 28822.41 ms. Allocated memory was 302.0 MB in the beginning and 10.8 GB in the end (delta: 10.4 GB). Free memory was 258.1 MB in the beginning and 9.6 GB in the end (delta: -9.3 GB). Peak memory consumption was 1.1 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 28.6s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.6s, HoareTripleCheckerStatistics: 1487 SDtfs, 2474 SDslu, 4908 SDs, 0 SdLazy, 587 SolverSat, 121 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 169 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49020occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 8.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 12620 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 666 NumberOfCodeBlocks, 666 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 653 ConstructedInterpolants, 0 QuantifiedInterpolants, 90181 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...