/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:39:22,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:39:22,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:39:22,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:39:22,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:39:22,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:39:22,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:39:22,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:39:22,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:39:22,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:39:22,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:39:22,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:39:22,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:39:22,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:39:22,734 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:39:22,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:39:22,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:39:22,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:39:22,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:39:22,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:39:22,751 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:39:22,752 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:39:22,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:39:22,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:39:22,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 18:39:22,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 18:39:22,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 18:39:22,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 18:39:22,768 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 18:39:22,769 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 18:39:22,769 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 18:39:22,770 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 18:39:22,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 18:39:22,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 18:39:22,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 18:39:22,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 18:39:22,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 18:39:22,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 18:39:22,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:39:22,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:39:22,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:39:22,775 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 18:39:22,796 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:39:22,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:39:22,798 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:39:22,798 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:39:22,798 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:39:22,798 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:39:22,799 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:39:22,799 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:39:22,799 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:39:22,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:39:22,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:39:22,800 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:39:22,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:39:22,800 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:39:22,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:39:22,800 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:39:22,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:39:22,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:39:22,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:39:22,801 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:39:22,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:39:22,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:39:22,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:39:22,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:39:22,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:39:22,802 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:39:22,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:39:22,803 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:39:22,803 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:39:22,803 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:39:23,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:39:23,118 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:39:23,123 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:39:23,124 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:39:23,124 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:39:23,125 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.opt.i [2020-10-15 18:39:23,180 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a7551444/a5da404058cb40ff8e2c8dfc010cf984/FLAG242866ce0 [2020-10-15 18:39:23,750 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:39:23,750 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.opt.i [2020-10-15 18:39:23,763 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a7551444/a5da404058cb40ff8e2c8dfc010cf984/FLAG242866ce0 [2020-10-15 18:39:23,981 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a7551444/a5da404058cb40ff8e2c8dfc010cf984 [2020-10-15 18:39:23,989 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:39:23,990 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:39:23,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:39:23,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:39:23,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:39:23,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:39:23" (1/1) ... [2020-10-15 18:39:24,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48348f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:23, skipping insertion in model container [2020-10-15 18:39:24,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:39:23" (1/1) ... [2020-10-15 18:39:24,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:39:24,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:39:24,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:39:24,598 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:39:24,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:39:24,726 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:39:24,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:24 WrapperNode [2020-10-15 18:39:24,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:39:24,728 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:39:24,728 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:39:24,728 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:39:24,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:24" (1/1) ... [2020-10-15 18:39:24,778 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:24" (1/1) ... [2020-10-15 18:39:24,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:39:24,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:39:24,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:39:24,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:39:24,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:24" (1/1) ... [2020-10-15 18:39:24,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:24" (1/1) ... [2020-10-15 18:39:24,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:24" (1/1) ... [2020-10-15 18:39:24,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:24" (1/1) ... [2020-10-15 18:39:24,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:24" (1/1) ... [2020-10-15 18:39:24,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:24" (1/1) ... [2020-10-15 18:39:24,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:24" (1/1) ... [2020-10-15 18:39:24,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:39:24,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:39:24,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:39:24,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:39:24,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:24" (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 [2020-10-15 18:39:24,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:39:24,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 18:39:24,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:39:24,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:39:24,898 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 18:39:24,898 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 18:39:24,898 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 18:39:24,899 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 18:39:24,899 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 18:39:24,900 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 18:39:24,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 18:39:24,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:39:24,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:39:24,902 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 18:39:25,226 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:39:25,226 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 18:39:25,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:39:25 BoogieIcfgContainer [2020-10-15 18:39:25,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:39:25,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:39:25,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:39:25,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:39:25,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:39:23" (1/3) ... [2020-10-15 18:39:25,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402ae9ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:39:25, skipping insertion in model container [2020-10-15 18:39:25,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:24" (2/3) ... [2020-10-15 18:39:25,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402ae9ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:39:25, skipping insertion in model container [2020-10-15 18:39:25,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:39:25" (3/3) ... [2020-10-15 18:39:25,239 INFO L111 eAbstractionObserver]: Analyzing ICFG safe032_tso.opt.i [2020-10-15 18:39:25,250 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:39:25,251 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:39:25,258 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:39:25,259 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:39:25,290 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,291 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,291 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,291 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,292 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,292 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,293 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,293 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,293 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,293 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,295 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,295 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,295 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,295 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,296 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,296 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,300 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,300 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,300 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,301 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,306 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,307 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,307 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,307 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,310 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,310 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,310 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,310 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:25,326 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 18:39:25,347 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:39:25,347 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:39:25,348 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:39:25,348 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:39:25,348 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:39:25,348 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:39:25,348 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:39:25,348 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:39:25,364 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:39:25,367 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-15 18:39:25,370 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-15 18:39:25,372 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-15 18:39:25,414 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-15 18:39:25,414 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:39:25,420 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-15 18:39:25,422 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-15 18:39:26,774 INFO L132 LiptonReduction]: Checked pairs total: 2465 [2020-10-15 18:39:26,774 INFO L134 LiptonReduction]: Total number of compositions: 54 [2020-10-15 18:39:26,781 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-15 18:39:26,811 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-15 18:39:26,814 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-15 18:39:26,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 18:39:26,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:39:26,823 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:39:26,823 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:39:26,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:39:26,829 INFO L82 PathProgramCache]: Analyzing trace with hash -589225259, now seen corresponding path program 1 times [2020-10-15 18:39:26,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:39:26,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797501791] [2020-10-15 18:39:26,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:39:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:39:27,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:39:27,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797501791] [2020-10-15 18:39:27,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:39:27,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:39:27,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895082060] [2020-10-15 18:39:27,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-15 18:39:27,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:39:27,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-15 18:39:27,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 18:39:27,048 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-15 18:39:27,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:39:27,084 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-15 18:39:27,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-15 18:39:27,085 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-15 18:39:27,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:39:27,104 INFO L225 Difference]: With dead ends: 362 [2020-10-15 18:39:27,104 INFO L226 Difference]: Without dead ends: 298 [2020-10-15 18:39:27,105 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 18:39:27,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-15 18:39:27,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-15 18:39:27,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-15 18:39:27,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-15 18:39:27,192 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-15 18:39:27,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:39:27,193 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-15 18:39:27,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-15 18:39:27,194 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-15 18:39:27,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 18:39:27,195 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:39:27,196 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:39:27,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:39:27,196 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:39:27,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:39:27,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1086118353, now seen corresponding path program 1 times [2020-10-15 18:39:27,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:39:27,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333781643] [2020-10-15 18:39:27,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:39:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:39:27,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:39:27,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333781643] [2020-10-15 18:39:27,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:39:27,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:39:27,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867518098] [2020-10-15 18:39:27,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:39:27,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:39:27,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:39:27,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:39:27,284 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-15 18:39:27,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:39:27,321 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-15 18:39:27,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:39:27,321 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-15 18:39:27,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:39:27,324 INFO L225 Difference]: With dead ends: 217 [2020-10-15 18:39:27,324 INFO L226 Difference]: Without dead ends: 217 [2020-10-15 18:39:27,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:39:27,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-15 18:39:27,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-15 18:39:27,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-15 18:39:27,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-15 18:39:27,346 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-15 18:39:27,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:39:27,347 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-15 18:39:27,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:39:27,347 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-15 18:39:27,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 18:39:27,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:39:27,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:39:27,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:39:27,350 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:39:27,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:39:27,350 INFO L82 PathProgramCache]: Analyzing trace with hash -954674037, now seen corresponding path program 1 times [2020-10-15 18:39:27,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:39:27,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780804402] [2020-10-15 18:39:27,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:39:27,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:39:27,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:39:27,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780804402] [2020-10-15 18:39:27,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:39:27,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:39:27,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222673922] [2020-10-15 18:39:27,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:39:27,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:39:27,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:39:27,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:39:27,424 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-10-15 18:39:27,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:39:27,477 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-15 18:39:27,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:39:27,479 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 18:39:27,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:39:27,481 INFO L225 Difference]: With dead ends: 136 [2020-10-15 18:39:27,481 INFO L226 Difference]: Without dead ends: 136 [2020-10-15 18:39:27,481 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:39:27,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-15 18:39:27,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-15 18:39:27,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-15 18:39:27,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-15 18:39:27,505 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-15 18:39:27,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:39:27,507 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-15 18:39:27,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:39:27,508 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-15 18:39:27,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:39:27,509 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:39:27,509 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:39:27,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:39:27,512 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:39:27,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:39:27,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1044268816, now seen corresponding path program 1 times [2020-10-15 18:39:27,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:39:27,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362170328] [2020-10-15 18:39:27,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:39:27,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:39:27,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:39:27,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362170328] [2020-10-15 18:39:27,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:39:27,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:39:27,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77681027] [2020-10-15 18:39:27,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:39:27,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:39:27,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:39:27,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:39:27,650 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-10-15 18:39:27,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:39:27,676 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-15 18:39:27,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:39:27,677 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-15 18:39:27,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:39:27,678 INFO L225 Difference]: With dead ends: 109 [2020-10-15 18:39:27,678 INFO L226 Difference]: Without dead ends: 109 [2020-10-15 18:39:27,678 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:39:27,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-15 18:39:27,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-15 18:39:27,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-15 18:39:27,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-15 18:39:27,684 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-15 18:39:27,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:39:27,685 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-15 18:39:27,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:39:27,685 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-15 18:39:27,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 18:39:27,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:39:27,686 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:39:27,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 18:39:27,687 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:39:27,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:39:27,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1052552835, now seen corresponding path program 1 times [2020-10-15 18:39:27,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:39:27,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970451551] [2020-10-15 18:39:27,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:39:27,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:39:27,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:39:27,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970451551] [2020-10-15 18:39:27,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:39:27,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:39:27,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444544593] [2020-10-15 18:39:27,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:39:27,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:39:27,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:39:27,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:39:27,759 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 5 states. [2020-10-15 18:39:27,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:39:27,798 INFO L93 Difference]: Finished difference Result 174 states and 369 transitions. [2020-10-15 18:39:27,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:39:27,799 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-15 18:39:27,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:39:27,800 INFO L225 Difference]: With dead ends: 174 [2020-10-15 18:39:27,801 INFO L226 Difference]: Without dead ends: 136 [2020-10-15 18:39:27,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:39:27,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-15 18:39:27,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 109. [2020-10-15 18:39:27,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-15 18:39:27,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 239 transitions. [2020-10-15 18:39:27,807 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 239 transitions. Word has length 18 [2020-10-15 18:39:27,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:39:27,808 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 239 transitions. [2020-10-15 18:39:27,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:39:27,808 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 239 transitions. [2020-10-15 18:39:27,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 18:39:27,809 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:39:27,809 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:39:27,810 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 18:39:27,810 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:39:27,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:39:27,810 INFO L82 PathProgramCache]: Analyzing trace with hash 645557555, now seen corresponding path program 2 times [2020-10-15 18:39:27,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:39:27,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623184868] [2020-10-15 18:39:27,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:39:27,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:39:27,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:39:27,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623184868] [2020-10-15 18:39:27,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:39:27,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:39:27,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826125633] [2020-10-15 18:39:27,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:39:27,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:39:27,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:39:27,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:39:27,866 INFO L87 Difference]: Start difference. First operand 109 states and 239 transitions. Second operand 5 states. [2020-10-15 18:39:27,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:39:27,914 INFO L93 Difference]: Finished difference Result 176 states and 358 transitions. [2020-10-15 18:39:27,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 18:39:27,914 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-15 18:39:27,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:39:27,916 INFO L225 Difference]: With dead ends: 176 [2020-10-15 18:39:27,916 INFO L226 Difference]: Without dead ends: 124 [2020-10-15 18:39:27,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 18:39:27,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-15 18:39:27,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 109. [2020-10-15 18:39:27,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-15 18:39:27,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 232 transitions. [2020-10-15 18:39:27,921 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 232 transitions. Word has length 18 [2020-10-15 18:39:27,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:39:27,922 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 232 transitions. [2020-10-15 18:39:27,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:39:27,922 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 232 transitions. [2020-10-15 18:39:27,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 18:39:27,923 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:39:27,923 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:39:27,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 18:39:27,924 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:39:27,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:39:27,924 INFO L82 PathProgramCache]: Analyzing trace with hash -457536705, now seen corresponding path program 3 times [2020-10-15 18:39:27,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:39:27,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280091729] [2020-10-15 18:39:27,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:39:27,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:39:28,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:39:28,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280091729] [2020-10-15 18:39:28,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:39:28,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:39:28,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119525198] [2020-10-15 18:39:28,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:39:28,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:39:28,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:39:28,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:39:28,005 INFO L87 Difference]: Start difference. First operand 109 states and 232 transitions. Second operand 5 states. [2020-10-15 18:39:28,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:39:28,080 INFO L93 Difference]: Finished difference Result 175 states and 348 transitions. [2020-10-15 18:39:28,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 18:39:28,081 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-15 18:39:28,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:39:28,081 INFO L225 Difference]: With dead ends: 175 [2020-10-15 18:39:28,081 INFO L226 Difference]: Without dead ends: 55 [2020-10-15 18:39:28,082 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:39:28,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-15 18:39:28,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-15 18:39:28,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-15 18:39:28,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-10-15 18:39:28,086 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 18 [2020-10-15 18:39:28,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:39:28,086 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-10-15 18:39:28,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:39:28,087 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-10-15 18:39:28,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 18:39:28,087 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:39:28,087 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:39:28,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 18:39:28,088 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:39:28,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:39:28,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1271535879, now seen corresponding path program 4 times [2020-10-15 18:39:28,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:39:28,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408470400] [2020-10-15 18:39:28,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:39:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:39:28,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:39:28,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408470400] [2020-10-15 18:39:28,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:39:28,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:39:28,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809609032] [2020-10-15 18:39:28,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:39:28,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:39:28,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:39:28,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:39:28,184 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 4 states. [2020-10-15 18:39:28,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:39:28,202 INFO L93 Difference]: Finished difference Result 54 states and 98 transitions. [2020-10-15 18:39:28,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:39:28,202 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-15 18:39:28,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:39:28,203 INFO L225 Difference]: With dead ends: 54 [2020-10-15 18:39:28,203 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 18:39:28,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:39:28,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 18:39:28,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 18:39:28,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 18:39:28,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 18:39:28,204 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-15 18:39:28,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:39:28,205 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 18:39:28,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:39:28,205 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 18:39:28,205 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 18:39:28,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 18:39:28,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:39:28 BasicIcfg [2020-10-15 18:39:28,209 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:39:28,212 INFO L168 Benchmark]: Toolchain (without parser) took 4220.84 ms. Allocated memory was 253.2 MB in the beginning and 374.3 MB in the end (delta: 121.1 MB). Free memory was 206.5 MB in the beginning and 269.6 MB in the end (delta: -63.2 MB). Peak memory consumption was 58.0 MB. Max. memory is 14.2 GB. [2020-10-15 18:39:28,213 INFO L168 Benchmark]: CDTParser took 0.94 ms. Allocated memory is still 253.2 MB. Free memory is still 227.1 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 18:39:28,214 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.31 ms. Allocated memory was 253.2 MB in the beginning and 321.9 MB in the end (delta: 68.7 MB). Free memory was 206.5 MB in the beginning and 275.1 MB in the end (delta: -68.6 MB). Peak memory consumption was 26.7 MB. Max. memory is 14.2 GB. [2020-10-15 18:39:28,215 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.41 ms. Allocated memory is still 321.9 MB. Free memory was 275.1 MB in the beginning and 272.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:39:28,216 INFO L168 Benchmark]: Boogie Preprocessor took 25.66 ms. Allocated memory is still 321.9 MB. Free memory was 272.6 MB in the beginning and 270.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:39:28,216 INFO L168 Benchmark]: RCFGBuilder took 397.12 ms. Allocated memory is still 321.9 MB. Free memory was 270.1 MB in the beginning and 248.2 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. [2020-10-15 18:39:28,217 INFO L168 Benchmark]: TraceAbstraction took 2977.79 ms. Allocated memory was 321.9 MB in the beginning and 374.3 MB in the end (delta: 52.4 MB). Free memory was 248.2 MB in the beginning and 269.6 MB in the end (delta: -21.4 MB). Peak memory consumption was 31.0 MB. Max. memory is 14.2 GB. [2020-10-15 18:39:28,222 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.94 ms. Allocated memory is still 253.2 MB. Free memory is still 227.1 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 736.31 ms. Allocated memory was 253.2 MB in the beginning and 321.9 MB in the end (delta: 68.7 MB). Free memory was 206.5 MB in the beginning and 275.1 MB in the end (delta: -68.6 MB). Peak memory consumption was 26.7 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 78.41 ms. Allocated memory is still 321.9 MB. Free memory was 275.1 MB in the beginning and 272.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 25.66 ms. Allocated memory is still 321.9 MB. Free memory was 272.6 MB in the beginning and 270.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 397.12 ms. Allocated memory is still 321.9 MB. Free memory was 270.1 MB in the beginning and 248.2 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2977.79 ms. Allocated memory was 321.9 MB in the beginning and 374.3 MB in the end (delta: 52.4 MB). Free memory was 248.2 MB in the beginning and 269.6 MB in the end (delta: -21.4 MB). Peak memory consumption was 31.0 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 784 VarBasedMoverChecksPositive, 45 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 64 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 77 PlacesBefore, 32 PlacesAfterwards, 69 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 54 TotalNumberOfCompositions, 2465 MoverChecksTotal - PositiveResult [Line: 7]: 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, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 162 SDtfs, 105 SDslu, 267 SDs, 0 SdLazy, 91 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 42 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 3814 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...