/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-New_States.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe025_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 12:24:43,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 12:24:43,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 12:24:43,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 12:24:43,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 12:24:43,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 12:24:43,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 12:24:43,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 12:24:43,788 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 12:24:43,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 12:24:43,791 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 12:24:43,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 12:24:43,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 12:24:43,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 12:24:43,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 12:24:43,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 12:24:43,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 12:24:43,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 12:24:43,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 12:24:43,804 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 12:24:43,806 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 12:24:43,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 12:24:43,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 12:24:43,811 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 12:24:43,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-12 12:24:43,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 12:24:43,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 12:24:43,820 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 12:24:43,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 12:24:43,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 12:24:43,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 12:24:43,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 12:24:43,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 12:24:43,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 12:24:43,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 12:24:43,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 12:24:43,829 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-New_States.epf [2020-11-12 12:24:43,865 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 12:24:43,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 12:24:43,866 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 12:24:43,867 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 12:24:43,867 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 12:24:43,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 12:24:43,867 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 12:24:43,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 12:24:43,868 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 12:24:43,868 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 12:24:43,868 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 12:24:43,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 12:24:43,869 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 12:24:43,869 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 12:24:43,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 12:24:43,869 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 12:24:43,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 12:24:43,870 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 12:24:43,870 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 12:24:43,870 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 12:24:43,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 12:24:43,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:24:43,871 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 12:24:43,871 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 12:24:43,871 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 12:24:43,872 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 12:24:43,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 12:24:43,872 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 12:24:43,872 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 12:24:43,872 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 12:24:43,873 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=NEW_STATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 12:24:44,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 12:24:44,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 12:24:44,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 12:24:44,261 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 12:24:44,262 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 12:24:44,263 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_tso.opt.i [2020-11-12 12:24:44,354 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81a1b833f/4cfc4ee1c83d45138481684ff8f52c3b/FLAGd4c706528 [2020-11-12 12:24:45,013 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 12:24:45,014 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_tso.opt.i [2020-11-12 12:24:45,034 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81a1b833f/4cfc4ee1c83d45138481684ff8f52c3b/FLAGd4c706528 [2020-11-12 12:24:45,286 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81a1b833f/4cfc4ee1c83d45138481684ff8f52c3b [2020-11-12 12:24:45,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 12:24:45,301 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 12:24:45,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 12:24:45,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 12:24:45,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 12:24:45,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:24:45" (1/1) ... [2020-11-12 12:24:45,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@701f56d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:24:45, skipping insertion in model container [2020-11-12 12:24:45,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:24:45" (1/1) ... [2020-11-12 12:24:45,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 12:24:45,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 12:24:45,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:24:45,925 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 12:24:45,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:24:46,121 INFO L208 MainTranslator]: Completed translation [2020-11-12 12:24:46,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:24:46 WrapperNode [2020-11-12 12:24:46,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 12:24:46,125 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 12:24:46,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 12:24:46,126 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 12:24:46,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:24:46" (1/1) ... [2020-11-12 12:24:46,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:24:46" (1/1) ... [2020-11-12 12:24:46,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 12:24:46,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 12:24:46,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 12:24:46,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 12:24:46,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:24:46" (1/1) ... [2020-11-12 12:24:46,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:24:46" (1/1) ... [2020-11-12 12:24:46,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:24:46" (1/1) ... [2020-11-12 12:24:46,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:24:46" (1/1) ... [2020-11-12 12:24:46,219 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:24:46" (1/1) ... [2020-11-12 12:24:46,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:24:46" (1/1) ... [2020-11-12 12:24:46,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:24:46" (1/1) ... [2020-11-12 12:24:46,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 12:24:46,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 12:24:46,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 12:24:46,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 12:24:46,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:24:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:24:46,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 12:24:46,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 12:24:46,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 12:24:46,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 12:24:46,324 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 12:24:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 12:24:46,324 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 12:24:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 12:24:46,324 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 12:24:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 12:24:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 12:24:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 12:24:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 12:24:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 12:24:46,327 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 12:24:46,722 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 12:24:46,723 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 12:24:46,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:24:46 BoogieIcfgContainer [2020-11-12 12:24:46,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 12:24:46,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 12:24:46,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 12:24:46,731 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 12:24:46,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:24:45" (1/3) ... [2020-11-12 12:24:46,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4cbca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:24:46, skipping insertion in model container [2020-11-12 12:24:46,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:24:46" (2/3) ... [2020-11-12 12:24:46,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4cbca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:24:46, skipping insertion in model container [2020-11-12 12:24:46,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:24:46" (3/3) ... [2020-11-12 12:24:46,736 INFO L111 eAbstractionObserver]: Analyzing ICFG safe025_tso.opt.i [2020-11-12 12:24:46,754 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 12:24:46,755 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 12:24:46,760 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 12:24:46,761 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 12:24:46,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,822 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,822 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,823 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,823 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,824 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,824 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,824 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,825 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,825 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,825 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,826 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,826 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,826 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,826 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,826 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,827 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,827 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,827 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,828 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,830 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,831 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,831 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,831 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,832 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,832 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,833 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,836 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,837 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,838 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,839 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,839 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,849 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,849 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,849 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,850 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,863 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,863 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,867 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,867 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,868 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,868 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:24:46,874 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 12:24:46,888 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-12 12:24:46,932 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 12:24:46,932 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 12:24:46,932 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 12:24:46,932 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 12:24:46,933 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 12:24:46,933 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 12:24:46,933 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 12:24:46,933 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 12:24:46,951 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2020-11-12 12:24:47,875 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:48,825 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 946ms [2020-11-12 12:24:48,877 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:48,981 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 33420 states, 30517 states have (on average 1.187764197004948) internal successors, (36247), 33419 states have internal predecessors, (36247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:49,029 INFO L276 IsEmpty]: Start isEmpty. Operand has 33420 states, 30517 states have (on average 1.187764197004948) internal successors, (36247), 33419 states have internal predecessors, (36247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:49,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-12 12:24:49,060 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:24:49,061 INFO L494 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] [2020-11-12 12:24:49,061 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:24:49,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:24:49,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1953454049, now seen corresponding path program 1 times [2020-11-12 12:24:49,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:24:49,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105836676] [2020-11-12 12:24:49,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:24:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:24:49,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:24:49,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105836676] [2020-11-12 12:24:49,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:24:49,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:24:49,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363258350] [2020-11-12 12:24:49,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:24:49,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:24:49,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:24:49,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:24:49,683 INFO L87 Difference]: Start difference. First operand has 33420 states, 30517 states have (on average 1.187764197004948) internal successors, (36247), 33419 states have internal predecessors, (36247), 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 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:50,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:24:50,001 INFO L93 Difference]: Finished difference Result 13855 states and 16035 transitions. [2020-11-12 12:24:50,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:24:50,003 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 42 [2020-11-12 12:24:50,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:24:50,051 INFO L225 Difference]: With dead ends: 13855 [2020-11-12 12:24:50,051 INFO L226 Difference]: Without dead ends: 4473 [2020-11-12 12:24:50,053 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:24:50,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4473 states. [2020-11-12 12:24:50,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4473 to 4473. [2020-11-12 12:24:50,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4473 states, 4228 states have (on average 1.3680227057710501) internal successors, (5784), 4472 states have internal predecessors, (5784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:50,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4473 states to 4473 states and 5784 transitions. [2020-11-12 12:24:50,421 INFO L78 Accepts]: Start accepts. Automaton has 4473 states and 5784 transitions. Word has length 42 [2020-11-12 12:24:50,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:24:50,422 INFO L481 AbstractCegarLoop]: Abstraction has 4473 states and 5784 transitions. [2020-11-12 12:24:50,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:50,423 INFO L276 IsEmpty]: Start isEmpty. Operand 4473 states and 5784 transitions. [2020-11-12 12:24:50,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-12 12:24:50,434 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:24:50,435 INFO L494 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] [2020-11-12 12:24:50,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 12:24:50,435 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:24:50,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:24:50,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1409301406, now seen corresponding path program 1 times [2020-11-12 12:24:50,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:24:50,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128239728] [2020-11-12 12:24:50,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:24:50,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:24:50,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:24:50,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128239728] [2020-11-12 12:24:50,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:24:50,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:24:50,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31844294] [2020-11-12 12:24:50,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:24:50,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:24:50,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:24:50,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:24:50,592 INFO L87 Difference]: Start difference. First operand 4473 states and 5784 transitions. 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) [2020-11-12 12:24:50,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:24:50,782 INFO L93 Difference]: Finished difference Result 5051 states and 6320 transitions. [2020-11-12 12:24:50,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:24:50,783 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 [2020-11-12 12:24:50,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:24:50,806 INFO L225 Difference]: With dead ends: 5051 [2020-11-12 12:24:50,806 INFO L226 Difference]: Without dead ends: 3540 [2020-11-12 12:24:50,807 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:24:50,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3540 states. [2020-11-12 12:24:50,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3540 to 3540. [2020-11-12 12:24:50,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3540 states, 3344 states have (on average 1.3035287081339713) internal successors, (4359), 3539 states have internal predecessors, (4359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:51,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3540 states to 3540 states and 4359 transitions. [2020-11-12 12:24:51,014 INFO L78 Accepts]: Start accepts. Automaton has 3540 states and 4359 transitions. Word has length 44 [2020-11-12 12:24:51,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:24:51,014 INFO L481 AbstractCegarLoop]: Abstraction has 3540 states and 4359 transitions. [2020-11-12 12:24:51,014 INFO L482 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) [2020-11-12 12:24:51,014 INFO L276 IsEmpty]: Start isEmpty. Operand 3540 states and 4359 transitions. [2020-11-12 12:24:51,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-12 12:24:51,024 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:24:51,024 INFO L494 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] [2020-11-12 12:24:51,024 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 12:24:51,024 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:24:51,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:24:51,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1167093592, now seen corresponding path program 1 times [2020-11-12 12:24:51,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:24:51,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907612367] [2020-11-12 12:24:51,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:24:51,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:24:51,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:24:51,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907612367] [2020-11-12 12:24:51,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:24:51,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:24:51,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790183436] [2020-11-12 12:24:51,173 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:24:51,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:24:51,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:24:51,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:24:51,175 INFO L87 Difference]: Start difference. First operand 3540 states and 4359 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:51,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:24:51,314 INFO L93 Difference]: Finished difference Result 3888 states and 4711 transitions. [2020-11-12 12:24:51,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:24:51,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2020-11-12 12:24:51,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:24:51,328 INFO L225 Difference]: With dead ends: 3888 [2020-11-12 12:24:51,328 INFO L226 Difference]: Without dead ends: 2738 [2020-11-12 12:24:51,329 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:24:51,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2738 states. [2020-11-12 12:24:51,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2738 to 2738. [2020-11-12 12:24:51,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2738 states, 2598 states have (on average 1.3129330254041571) internal successors, (3411), 2737 states have internal predecessors, (3411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:51,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2738 states to 2738 states and 3411 transitions. [2020-11-12 12:24:51,402 INFO L78 Accepts]: Start accepts. Automaton has 2738 states and 3411 transitions. Word has length 45 [2020-11-12 12:24:51,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:24:51,402 INFO L481 AbstractCegarLoop]: Abstraction has 2738 states and 3411 transitions. [2020-11-12 12:24:51,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:51,403 INFO L276 IsEmpty]: Start isEmpty. Operand 2738 states and 3411 transitions. [2020-11-12 12:24:51,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-12 12:24:51,408 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:24:51,409 INFO L494 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] [2020-11-12 12:24:51,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 12:24:51,409 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:24:51,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:24:51,411 INFO L82 PathProgramCache]: Analyzing trace with hash -585596203, now seen corresponding path program 1 times [2020-11-12 12:24:51,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:24:51,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852527774] [2020-11-12 12:24:51,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:24:51,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:24:51,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:24:51,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852527774] [2020-11-12 12:24:51,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:24:51,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:24:51,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457048490] [2020-11-12 12:24:51,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:24:51,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:24:51,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:24:51,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:24:51,671 INFO L87 Difference]: Start difference. First operand 2738 states and 3411 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:51,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:24:51,800 INFO L93 Difference]: Finished difference Result 4525 states and 5787 transitions. [2020-11-12 12:24:51,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:24:51,800 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 47 [2020-11-12 12:24:51,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:24:51,816 INFO L225 Difference]: With dead ends: 4525 [2020-11-12 12:24:51,817 INFO L226 Difference]: Without dead ends: 2676 [2020-11-12 12:24:51,817 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:24:51,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2020-11-12 12:24:51,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2676. [2020-11-12 12:24:51,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2676 states, 2536 states have (on average 1.3146687697160884) internal successors, (3334), 2675 states have internal predecessors, (3334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:51,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2676 states to 2676 states and 3334 transitions. [2020-11-12 12:24:51,891 INFO L78 Accepts]: Start accepts. Automaton has 2676 states and 3334 transitions. Word has length 47 [2020-11-12 12:24:51,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:24:51,892 INFO L481 AbstractCegarLoop]: Abstraction has 2676 states and 3334 transitions. [2020-11-12 12:24:51,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:51,893 INFO L276 IsEmpty]: Start isEmpty. Operand 2676 states and 3334 transitions. [2020-11-12 12:24:51,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-12 12:24:51,897 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:24:51,897 INFO L494 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] [2020-11-12 12:24:51,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 12:24:51,898 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:24:51,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:24:51,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1464793097, now seen corresponding path program 2 times [2020-11-12 12:24:51,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:24:51,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377849174] [2020-11-12 12:24:51,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:24:51,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:24:52,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:24:52,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377849174] [2020-11-12 12:24:52,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:24:52,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:24:52,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798393304] [2020-11-12 12:24:52,075 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:24:52,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:24:52,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:24:52,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:24:52,080 INFO L87 Difference]: Start difference. First operand 2676 states and 3334 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:52,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:24:52,218 INFO L93 Difference]: Finished difference Result 2943 states and 3508 transitions. [2020-11-12 12:24:52,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:24:52,219 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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 47 [2020-11-12 12:24:52,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:24:52,230 INFO L225 Difference]: With dead ends: 2943 [2020-11-12 12:24:52,231 INFO L226 Difference]: Without dead ends: 2515 [2020-11-12 12:24:52,231 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:24:52,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2515 states. [2020-11-12 12:24:52,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2515 to 2515. [2020-11-12 12:24:52,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2515 states, 2383 states have (on average 1.2891313470415442) internal successors, (3072), 2514 states have internal predecessors, (3072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:52,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2515 states to 2515 states and 3072 transitions. [2020-11-12 12:24:52,325 INFO L78 Accepts]: Start accepts. Automaton has 2515 states and 3072 transitions. Word has length 47 [2020-11-12 12:24:52,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:24:52,325 INFO L481 AbstractCegarLoop]: Abstraction has 2515 states and 3072 transitions. [2020-11-12 12:24:52,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:52,326 INFO L276 IsEmpty]: Start isEmpty. Operand 2515 states and 3072 transitions. [2020-11-12 12:24:52,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-12 12:24:52,331 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:24:52,331 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:24:52,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 12:24:52,332 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:24:52,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:24:52,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1064363714, now seen corresponding path program 1 times [2020-11-12 12:24:52,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:24:52,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323165735] [2020-11-12 12:24:52,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:24:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:24:52,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:24:52,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323165735] [2020-11-12 12:24:52,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:24:52,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:24:52,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280374391] [2020-11-12 12:24:52,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:24:52,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:24:52,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:24:52,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:24:52,462 INFO L87 Difference]: Start difference. First operand 2515 states and 3072 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) [2020-11-12 12:24:52,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:24:52,630 INFO L93 Difference]: Finished difference Result 2309 states and 2688 transitions. [2020-11-12 12:24:52,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:24:52,631 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 [2020-11-12 12:24:52,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:24:52,640 INFO L225 Difference]: With dead ends: 2309 [2020-11-12 12:24:52,640 INFO L226 Difference]: Without dead ends: 1754 [2020-11-12 12:24:52,641 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-12 12:24:52,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2020-11-12 12:24:52,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1754. [2020-11-12 12:24:52,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1754 states, 1664 states have (on average 1.2025240384615385) internal successors, (2001), 1753 states have internal predecessors, (2001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:52,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1754 states to 1754 states and 2001 transitions. [2020-11-12 12:24:52,691 INFO L78 Accepts]: Start accepts. Automaton has 1754 states and 2001 transitions. Word has length 48 [2020-11-12 12:24:52,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:24:52,691 INFO L481 AbstractCegarLoop]: Abstraction has 1754 states and 2001 transitions. [2020-11-12 12:24:52,692 INFO L482 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) [2020-11-12 12:24:52,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1754 states and 2001 transitions. [2020-11-12 12:24:52,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-12 12:24:52,696 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:24:52,696 INFO L494 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] [2020-11-12 12:24:52,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 12:24:52,697 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:24:52,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:24:52,697 INFO L82 PathProgramCache]: Analyzing trace with hash 600028321, now seen corresponding path program 1 times [2020-11-12 12:24:52,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:24:52,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356780405] [2020-11-12 12:24:52,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:24:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:24:52,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:24:52,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356780405] [2020-11-12 12:24:52,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:24:52,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-12 12:24:52,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747806755] [2020-11-12 12:24:52,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-12 12:24:52,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:24:52,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-12 12:24:52,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-12 12:24:52,826 INFO L87 Difference]: Start difference. First operand 1754 states and 2001 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 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) [2020-11-12 12:24:53,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:24:53,030 INFO L93 Difference]: Finished difference Result 1206 states and 1354 transitions. [2020-11-12 12:24:53,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-12 12:24:53,031 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 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 [2020-11-12 12:24:53,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:24:53,034 INFO L225 Difference]: With dead ends: 1206 [2020-11-12 12:24:53,034 INFO L226 Difference]: Without dead ends: 628 [2020-11-12 12:24:53,035 INFO L749 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 [2020-11-12 12:24:53,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2020-11-12 12:24:53,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2020-11-12 12:24:53,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 601 states have (on average 1.1114808652246255) internal successors, (668), 627 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:53,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 668 transitions. [2020-11-12 12:24:53,052 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 668 transitions. Word has length 50 [2020-11-12 12:24:53,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:24:53,053 INFO L481 AbstractCegarLoop]: Abstraction has 628 states and 668 transitions. [2020-11-12 12:24:53,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 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) [2020-11-12 12:24:53,053 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 668 transitions. [2020-11-12 12:24:53,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-12 12:24:53,055 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:24:53,055 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:24:53,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-12 12:24:53,056 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:24:53,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:24:53,057 INFO L82 PathProgramCache]: Analyzing trace with hash 705408351, now seen corresponding path program 1 times [2020-11-12 12:24:53,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:24:53,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181675340] [2020-11-12 12:24:53,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:24:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:24:53,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:24:53,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181675340] [2020-11-12 12:24:53,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:24:53,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:24:53,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11082921] [2020-11-12 12:24:53,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:24:53,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:24:53,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:24:53,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:24:53,212 INFO L87 Difference]: Start difference. First operand 628 states and 668 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:53,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:24:53,317 INFO L93 Difference]: Finished difference Result 903 states and 934 transitions. [2020-11-12 12:24:53,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:24:53,319 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2020-11-12 12:24:53,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:24:53,321 INFO L225 Difference]: With dead ends: 903 [2020-11-12 12:24:53,321 INFO L226 Difference]: Without dead ends: 476 [2020-11-12 12:24:53,322 INFO L749 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 [2020-11-12 12:24:53,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-11-12 12:24:53,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 476. [2020-11-12 12:24:53,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 449 states have (on average 1.0846325167037862) internal successors, (487), 475 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:53,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 487 transitions. [2020-11-12 12:24:53,336 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 487 transitions. Word has length 54 [2020-11-12 12:24:53,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:24:53,336 INFO L481 AbstractCegarLoop]: Abstraction has 476 states and 487 transitions. [2020-11-12 12:24:53,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:53,337 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 487 transitions. [2020-11-12 12:24:53,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-12 12:24:53,338 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:24:53,339 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:24:53,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-12 12:24:53,339 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:24:53,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:24:53,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1769712545, now seen corresponding path program 2 times [2020-11-12 12:24:53,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:24:53,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106064955] [2020-11-12 12:24:53,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:24:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:24:53,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:24:53,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106064955] [2020-11-12 12:24:53,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:24:53,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:24:53,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080046320] [2020-11-12 12:24:53,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:24:53,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:24:53,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:24:53,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:24:53,445 INFO L87 Difference]: Start difference. First operand 476 states and 487 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:53,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:24:53,548 INFO L93 Difference]: Finished difference Result 747 states and 749 transitions. [2020-11-12 12:24:53,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:24:53,548 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2020-11-12 12:24:53,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:24:53,551 INFO L225 Difference]: With dead ends: 747 [2020-11-12 12:24:53,551 INFO L226 Difference]: Without dead ends: 431 [2020-11-12 12:24:53,551 INFO L749 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 [2020-11-12 12:24:53,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2020-11-12 12:24:53,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2020-11-12 12:24:53,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 404 states have (on average 1.0643564356435644) internal successors, (430), 430 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:53,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 430 transitions. [2020-11-12 12:24:53,562 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 430 transitions. Word has length 54 [2020-11-12 12:24:53,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:24:53,562 INFO L481 AbstractCegarLoop]: Abstraction has 431 states and 430 transitions. [2020-11-12 12:24:53,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:53,563 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 430 transitions. [2020-11-12 12:24:53,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-12 12:24:53,564 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:24:53,564 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:24:53,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-12 12:24:53,564 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:24:53,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:24:53,565 INFO L82 PathProgramCache]: Analyzing trace with hash -785716413, now seen corresponding path program 3 times [2020-11-12 12:24:53,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:24:53,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612228651] [2020-11-12 12:24:53,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:24:53,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:24:53,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:24:53,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612228651] [2020-11-12 12:24:53,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:24:53,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:24:53,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851047691] [2020-11-12 12:24:53,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:24:53,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:24:53,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:24:53,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:24:53,665 INFO L87 Difference]: Start difference. First operand 431 states and 430 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:53,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:24:53,758 INFO L93 Difference]: Finished difference Result 323 states and 322 transitions. [2020-11-12 12:24:53,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:24:53,759 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2020-11-12 12:24:53,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:24:53,759 INFO L225 Difference]: With dead ends: 323 [2020-11-12 12:24:53,759 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 12:24:53,760 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:24:53,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 12:24:53,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 12:24:53,760 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) [2020-11-12 12:24:53,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 12:24:53,760 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2020-11-12 12:24:53,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:24:53,761 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 12:24:53,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:24:53,761 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 12:24:53,761 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 12:24:53,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-12 12:24:53,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:24:53 BasicIcfg [2020-11-12 12:24:53,767 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 12:24:53,769 INFO L168 Benchmark]: Toolchain (without parser) took 8473.69 ms. Allocated memory was 316.7 MB in the beginning and 1.4 GB in the end (delta: 1.0 GB). Free memory was 291.0 MB in the beginning and 1.2 GB in the end (delta: -891.7 MB). Peak memory consumption was 152.9 MB. Max. memory is 16.0 GB. [2020-11-12 12:24:53,770 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 316.7 MB. Free memory is still 285.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:24:53,771 INFO L168 Benchmark]: CACSL2BoogieTranslator took 820.64 ms. Allocated memory is still 316.7 MB. Free memory was 290.4 MB in the beginning and 292.6 MB in the end (delta: -2.3 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.0 GB. [2020-11-12 12:24:53,771 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.53 ms. Allocated memory is still 316.7 MB. Free memory was 292.6 MB in the beginning and 290.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:24:53,772 INFO L168 Benchmark]: Boogie Preprocessor took 29.60 ms. Allocated memory is still 316.7 MB. Free memory was 290.5 MB in the beginning and 288.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:24:53,773 INFO L168 Benchmark]: RCFGBuilder took 496.40 ms. Allocated memory is still 316.7 MB. Free memory was 288.4 MB in the beginning and 266.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:24:53,774 INFO L168 Benchmark]: TraceAbstraction took 7039.52 ms. Allocated memory was 316.7 MB in the beginning and 1.4 GB in the end (delta: 1.0 GB). Free memory was 265.4 MB in the beginning and 1.2 GB in the end (delta: -917.3 MB). Peak memory consumption was 128.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:24:53,777 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 316.7 MB. Free memory is still 285.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 820.64 ms. Allocated memory is still 316.7 MB. Free memory was 290.4 MB in the beginning and 292.6 MB in the end (delta: -2.3 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 72.53 ms. Allocated memory is still 316.7 MB. Free memory was 292.6 MB in the beginning and 290.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.60 ms. Allocated memory is still 316.7 MB. Free memory was 290.5 MB in the beginning and 288.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 496.40 ms. Allocated memory is still 316.7 MB. Free memory was 288.4 MB in the beginning and 266.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 7039.52 ms. Allocated memory was 316.7 MB in the beginning and 1.4 GB in the end (delta: 1.0 GB). Free memory was 265.4 MB in the beginning and 1.2 GB in the end (delta: -917.3 MB). Peak memory consumption was 128.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.8s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 661 SDtfs, 758 SDslu, 2568 SDs, 0 SdLazy, 337 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33420occurred 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: 0.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 485 NumberOfCodeBlocks, 485 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 475 ConstructedInterpolants, 0 QuantifiedInterpolants, 59625 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...