/usr/bin/java -Xmx8000000000 -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/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 23:06:48,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 23:06:48,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 23:06:48,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 23:06:48,891 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 23:06:48,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 23:06:48,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 23:06:48,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 23:06:48,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 23:06:48,898 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 23:06:48,899 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 23:06:48,900 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 23:06:48,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 23:06:48,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 23:06:48,903 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 23:06:48,904 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 23:06:48,905 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 23:06:48,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 23:06:48,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 23:06:48,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 23:06:48,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 23:06:48,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 23:06:48,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 23:06:48,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 23:06:48,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 23:06:48,919 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 23:06:48,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 23:06:48,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 23:06:48,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 23:06:48,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 23:06:48,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 23:06:48,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 23:06:48,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 23:06:48,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 23:06:48,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 23:06:48,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 23:06:48,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 23:06:48,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 23:06:48,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 23:06:48,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 23:06:48,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 23:06:48,930 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-21 23:06:48,954 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 23:06:48,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 23:06:48,955 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 23:06:48,955 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 23:06:48,956 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 23:06:48,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 23:06:48,956 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 23:06:48,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 23:06:48,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 23:06:48,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 23:06:48,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 23:06:48,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 23:06:48,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 23:06:48,958 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 23:06:48,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 23:06:48,958 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 23:06:48,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 23:06:48,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 23:06:48,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 23:06:48,959 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 23:06:48,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 23:06:48,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:06:48,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 23:06:48,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 23:06:48,959 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 23:06:48,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 23:06:48,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 23:06:48,963 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 23:06:48,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 23:06:49,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 23:06:49,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 23:06:49,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 23:06:49,292 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 23:06:49,293 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 23:06:49,293 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2020-10-21 23:06:49,369 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cb7f450e/4e783559c78949f2848ac1c77ea2368e/FLAG19782ed37 [2020-10-21 23:06:49,917 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 23:06:49,918 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2020-10-21 23:06:49,939 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cb7f450e/4e783559c78949f2848ac1c77ea2368e/FLAG19782ed37 [2020-10-21 23:06:50,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cb7f450e/4e783559c78949f2848ac1c77ea2368e [2020-10-21 23:06:50,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 23:06:50,211 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 23:06:50,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 23:06:50,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 23:06:50,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 23:06:50,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:06:50" (1/1) ... [2020-10-21 23:06:50,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4333b738 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:50, skipping insertion in model container [2020-10-21 23:06:50,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:06:50" (1/1) ... [2020-10-21 23:06:50,229 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 23:06:50,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 23:06:50,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:06:50,753 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 23:06:50,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:06:50,931 INFO L208 MainTranslator]: Completed translation [2020-10-21 23:06:50,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:50 WrapperNode [2020-10-21 23:06:50,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 23:06:50,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 23:06:50,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 23:06:50,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 23:06:50,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:50" (1/1) ... [2020-10-21 23:06:50,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:50" (1/1) ... [2020-10-21 23:06:51,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 23:06:51,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 23:06:51,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 23:06:51,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 23:06:51,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:50" (1/1) ... [2020-10-21 23:06:51,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:50" (1/1) ... [2020-10-21 23:06:51,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:50" (1/1) ... [2020-10-21 23:06:51,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:50" (1/1) ... [2020-10-21 23:06:51,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:50" (1/1) ... [2020-10-21 23:06:51,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:50" (1/1) ... [2020-10-21 23:06:51,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:50" (1/1) ... [2020-10-21 23:06:51,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 23:06:51,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 23:06:51,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 23:06:51,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 23:06:51,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:50" (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 [2020-10-21 23:06:51,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 23:06:51,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 23:06:51,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 23:06:51,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 23:06:51,151 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 23:06:51,152 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 23:06:51,152 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 23:06:51,152 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 23:06:51,152 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-21 23:06:51,152 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-21 23:06:51,152 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-21 23:06:51,153 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-21 23:06:51,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 23:06:51,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 23:06:51,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 23:06:51,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 23:06:51,155 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 23:06:51,562 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 23:06:51,562 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 23:06:51,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:06:51 BoogieIcfgContainer [2020-10-21 23:06:51,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 23:06:51,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 23:06:51,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 23:06:51,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 23:06:51,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 11:06:50" (1/3) ... [2020-10-21 23:06:51,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f8b099e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:06:51, skipping insertion in model container [2020-10-21 23:06:51,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:06:50" (2/3) ... [2020-10-21 23:06:51,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f8b099e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:06:51, skipping insertion in model container [2020-10-21 23:06:51,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:06:51" (3/3) ... [2020-10-21 23:06:51,582 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_pso.opt.i [2020-10-21 23:06:51,596 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 23:06:51,596 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 23:06:51,604 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 23:06:51,605 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 23:06:51,641 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,641 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,642 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,644 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,646 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,646 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,648 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,648 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,648 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,648 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,649 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,649 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,650 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,650 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,650 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,650 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,651 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,651 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,656 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,656 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,656 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,656 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,664 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,665 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,665 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,665 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,673 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,673 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,673 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,674 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,680 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,681 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,681 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,681 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:06:51,683 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 23:06:51,698 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-21 23:06:51,721 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 23:06:51,722 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 23:06:51,722 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 23:06:51,722 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 23:06:51,722 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 23:06:51,722 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 23:06:51,722 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 23:06:51,723 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 23:06:51,739 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 23:06:51,739 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 90 transitions, 200 flow [2020-10-21 23:06:51,742 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 90 transitions, 200 flow [2020-10-21 23:06:51,743 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 100 places, 90 transitions, 200 flow [2020-10-21 23:06:51,794 INFO L129 PetriNetUnfolder]: 3/86 cut-off events. [2020-10-21 23:06:51,798 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 23:06:51,806 INFO L80 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 86 events. 3/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-10-21 23:06:51,810 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-10-21 23:06:53,126 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-10-21 23:06:53,643 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-21 23:06:53,934 INFO L131 LiptonReduction]: Checked pairs total: 4371 [2020-10-21 23:06:53,934 INFO L133 LiptonReduction]: Total number of compositions: 85 [2020-10-21 23:06:53,942 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-10-21 23:06:53,990 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-10-21 23:06:53,993 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-10-21 23:06:54,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 23:06:54,004 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:54,005 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:54,005 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:54,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:54,011 INFO L82 PathProgramCache]: Analyzing trace with hash -849468874, now seen corresponding path program 1 times [2020-10-21 23:06:54,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:54,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804046069] [2020-10-21 23:06:54,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:54,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:54,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804046069] [2020-10-21 23:06:54,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:54,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 23:06:54,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847817133] [2020-10-21 23:06:54,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:06:54,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:54,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:06:54,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:06:54,311 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-10-21 23:06:54,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:54,373 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-10-21 23:06:54,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:06:54,375 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-21 23:06:54,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:54,399 INFO L225 Difference]: With dead ends: 670 [2020-10-21 23:06:54,400 INFO L226 Difference]: Without dead ends: 526 [2020-10-21 23:06:54,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:06:54,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-21 23:06:54,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-10-21 23:06:54,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-21 23:06:54,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-10-21 23:06:54,504 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-10-21 23:06:54,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:54,506 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-10-21 23:06:54,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:06:54,506 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-10-21 23:06:54,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 23:06:54,509 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:54,509 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:54,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 23:06:54,510 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:54,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:54,510 INFO L82 PathProgramCache]: Analyzing trace with hash -579920157, now seen corresponding path program 1 times [2020-10-21 23:06:54,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:54,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667318511] [2020-10-21 23:06:54,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:54,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:54,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667318511] [2020-10-21 23:06:54,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:54,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:06:54,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430074463] [2020-10-21 23:06:54,631 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:06:54,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:54,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:06:54,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:06:54,632 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-10-21 23:06:54,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:54,670 INFO L93 Difference]: Finished difference Result 682 states and 2180 transitions. [2020-10-21 23:06:54,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:06:54,670 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-21 23:06:54,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:54,675 INFO L225 Difference]: With dead ends: 682 [2020-10-21 23:06:54,675 INFO L226 Difference]: Without dead ends: 394 [2020-10-21 23:06:54,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:06:54,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-21 23:06:54,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-21 23:06:54,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-21 23:06:54,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1224 transitions. [2020-10-21 23:06:54,697 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1224 transitions. Word has length 11 [2020-10-21 23:06:54,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:54,697 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1224 transitions. [2020-10-21 23:06:54,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:06:54,698 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1224 transitions. [2020-10-21 23:06:54,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 23:06:54,700 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:54,700 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:54,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 23:06:54,700 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:54,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:54,701 INFO L82 PathProgramCache]: Analyzing trace with hash -536731131, now seen corresponding path program 1 times [2020-10-21 23:06:54,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:54,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139867994] [2020-10-21 23:06:54,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:54,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:54,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139867994] [2020-10-21 23:06:54,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:54,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 23:06:54,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087009864] [2020-10-21 23:06:54,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:06:54,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:54,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:06:54,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:06:54,751 INFO L87 Difference]: Start difference. First operand 394 states and 1224 transitions. Second operand 3 states. [2020-10-21 23:06:54,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:54,763 INFO L93 Difference]: Finished difference Result 386 states and 1190 transitions. [2020-10-21 23:06:54,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:06:54,764 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-21 23:06:54,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:54,768 INFO L225 Difference]: With dead ends: 386 [2020-10-21 23:06:54,768 INFO L226 Difference]: Without dead ends: 386 [2020-10-21 23:06:54,769 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:06:54,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-10-21 23:06:54,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2020-10-21 23:06:54,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-10-21 23:06:54,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 1190 transitions. [2020-10-21 23:06:54,786 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 1190 transitions. Word has length 12 [2020-10-21 23:06:54,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:54,787 INFO L481 AbstractCegarLoop]: Abstraction has 386 states and 1190 transitions. [2020-10-21 23:06:54,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:06:54,787 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 1190 transitions. [2020-10-21 23:06:54,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 23:06:54,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:54,790 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:54,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 23:06:54,790 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:54,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:54,791 INFO L82 PathProgramCache]: Analyzing trace with hash 541202337, now seen corresponding path program 1 times [2020-10-21 23:06:54,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:54,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103011655] [2020-10-21 23:06:54,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:54,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:54,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103011655] [2020-10-21 23:06:54,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:54,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 23:06:54,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090760736] [2020-10-21 23:06:54,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:06:54,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:54,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:06:54,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:06:54,863 INFO L87 Difference]: Start difference. First operand 386 states and 1190 transitions. Second operand 3 states. [2020-10-21 23:06:54,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:54,871 INFO L93 Difference]: Finished difference Result 370 states and 1130 transitions. [2020-10-21 23:06:54,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:06:54,872 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-21 23:06:54,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:54,875 INFO L225 Difference]: With dead ends: 370 [2020-10-21 23:06:54,875 INFO L226 Difference]: Without dead ends: 370 [2020-10-21 23:06:54,876 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:06:54,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-10-21 23:06:54,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2020-10-21 23:06:54,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-10-21 23:06:54,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1130 transitions. [2020-10-21 23:06:54,890 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1130 transitions. Word has length 13 [2020-10-21 23:06:54,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:54,890 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 1130 transitions. [2020-10-21 23:06:54,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:06:54,890 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1130 transitions. [2020-10-21 23:06:54,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-21 23:06:54,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:54,893 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:54,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 23:06:54,894 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:54,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:54,894 INFO L82 PathProgramCache]: Analyzing trace with hash -9141191, now seen corresponding path program 1 times [2020-10-21 23:06:54,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:54,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562432569] [2020-10-21 23:06:54,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:54,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:54,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:54,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562432569] [2020-10-21 23:06:54,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:54,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:06:54,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395019523] [2020-10-21 23:06:54,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:06:54,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:54,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:06:54,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:06:54,954 INFO L87 Difference]: Start difference. First operand 370 states and 1130 transitions. Second operand 4 states. [2020-10-21 23:06:54,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:54,978 INFO L93 Difference]: Finished difference Result 526 states and 1582 transitions. [2020-10-21 23:06:54,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:06:54,979 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-21 23:06:54,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:54,982 INFO L225 Difference]: With dead ends: 526 [2020-10-21 23:06:54,982 INFO L226 Difference]: Without dead ends: 286 [2020-10-21 23:06:54,982 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:06:54,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-21 23:06:54,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2020-10-21 23:06:54,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-10-21 23:06:54,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 851 transitions. [2020-10-21 23:06:54,993 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 851 transitions. Word has length 14 [2020-10-21 23:06:54,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:54,993 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 851 transitions. [2020-10-21 23:06:54,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:06:54,994 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 851 transitions. [2020-10-21 23:06:54,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-21 23:06:54,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:54,995 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:54,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 23:06:54,995 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:54,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:54,996 INFO L82 PathProgramCache]: Analyzing trace with hash -402598089, now seen corresponding path program 2 times [2020-10-21 23:06:54,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:54,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36183215] [2020-10-21 23:06:54,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:55,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:55,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36183215] [2020-10-21 23:06:55,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:55,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:06:55,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539908606] [2020-10-21 23:06:55,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:06:55,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:55,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:06:55,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:06:55,108 INFO L87 Difference]: Start difference. First operand 286 states and 851 transitions. Second operand 4 states. [2020-10-21 23:06:55,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:55,148 INFO L93 Difference]: Finished difference Result 355 states and 990 transitions. [2020-10-21 23:06:55,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:06:55,148 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-21 23:06:55,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:55,151 INFO L225 Difference]: With dead ends: 355 [2020-10-21 23:06:55,151 INFO L226 Difference]: Without dead ends: 262 [2020-10-21 23:06:55,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:06:55,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-21 23:06:55,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-10-21 23:06:55,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-10-21 23:06:55,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 738 transitions. [2020-10-21 23:06:55,161 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 738 transitions. Word has length 14 [2020-10-21 23:06:55,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:55,161 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 738 transitions. [2020-10-21 23:06:55,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:06:55,161 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 738 transitions. [2020-10-21 23:06:55,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 23:06:55,162 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:55,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:55,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 23:06:55,163 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:55,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:55,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1456913458, now seen corresponding path program 1 times [2020-10-21 23:06:55,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:55,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273348549] [2020-10-21 23:06:55,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:55,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:55,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273348549] [2020-10-21 23:06:55,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:55,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:06:55,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521007606] [2020-10-21 23:06:55,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:06:55,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:55,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:06:55,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:06:55,236 INFO L87 Difference]: Start difference. First operand 262 states and 738 transitions. Second operand 5 states. [2020-10-21 23:06:55,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:55,316 INFO L93 Difference]: Finished difference Result 283 states and 734 transitions. [2020-10-21 23:06:55,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 23:06:55,317 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-21 23:06:55,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:55,318 INFO L225 Difference]: With dead ends: 283 [2020-10-21 23:06:55,319 INFO L226 Difference]: Without dead ends: 208 [2020-10-21 23:06:55,320 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-21 23:06:55,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-10-21 23:06:55,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2020-10-21 23:06:55,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-10-21 23:06:55,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 528 transitions. [2020-10-21 23:06:55,327 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 528 transitions. Word has length 15 [2020-10-21 23:06:55,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:55,328 INFO L481 AbstractCegarLoop]: Abstraction has 208 states and 528 transitions. [2020-10-21 23:06:55,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:06:55,328 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 528 transitions. [2020-10-21 23:06:55,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 23:06:55,329 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:55,329 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:55,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 23:06:55,329 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:55,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:55,330 INFO L82 PathProgramCache]: Analyzing trace with hash -2108608562, now seen corresponding path program 1 times [2020-10-21 23:06:55,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:55,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307282085] [2020-10-21 23:06:55,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:55,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:55,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307282085] [2020-10-21 23:06:55,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:55,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 23:06:55,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959896425] [2020-10-21 23:06:55,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 23:06:55,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:55,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 23:06:55,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-21 23:06:55,458 INFO L87 Difference]: Start difference. First operand 208 states and 528 transitions. Second operand 6 states. [2020-10-21 23:06:55,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:55,526 INFO L93 Difference]: Finished difference Result 201 states and 486 transitions. [2020-10-21 23:06:55,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 23:06:55,526 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-21 23:06:55,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:55,528 INFO L225 Difference]: With dead ends: 201 [2020-10-21 23:06:55,529 INFO L226 Difference]: Without dead ends: 163 [2020-10-21 23:06:55,534 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-21 23:06:55,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-10-21 23:06:55,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2020-10-21 23:06:55,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-10-21 23:06:55,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 394 transitions. [2020-10-21 23:06:55,547 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 394 transitions. Word has length 16 [2020-10-21 23:06:55,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:55,547 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 394 transitions. [2020-10-21 23:06:55,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 23:06:55,547 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 394 transitions. [2020-10-21 23:06:55,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 23:06:55,551 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:55,552 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:55,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-21 23:06:55,552 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:55,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:55,552 INFO L82 PathProgramCache]: Analyzing trace with hash -999056211, now seen corresponding path program 1 times [2020-10-21 23:06:55,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:55,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255339586] [2020-10-21 23:06:55,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:55,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:55,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255339586] [2020-10-21 23:06:55,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:55,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:06:55,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869746270] [2020-10-21 23:06:55,628 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:06:55,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:55,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:06:55,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:06:55,630 INFO L87 Difference]: Start difference. First operand 163 states and 394 transitions. Second operand 3 states. [2020-10-21 23:06:55,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:55,651 INFO L93 Difference]: Finished difference Result 203 states and 478 transitions. [2020-10-21 23:06:55,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:06:55,651 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-10-21 23:06:55,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:55,653 INFO L225 Difference]: With dead ends: 203 [2020-10-21 23:06:55,653 INFO L226 Difference]: Without dead ends: 164 [2020-10-21 23:06:55,654 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 [2020-10-21 23:06:55,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-10-21 23:06:55,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 162. [2020-10-21 23:06:55,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-21 23:06:55,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 375 transitions. [2020-10-21 23:06:55,660 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 375 transitions. Word has length 18 [2020-10-21 23:06:55,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:55,660 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 375 transitions. [2020-10-21 23:06:55,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:06:55,661 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 375 transitions. [2020-10-21 23:06:55,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 23:06:55,662 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:55,662 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:55,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-21 23:06:55,662 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:55,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:55,663 INFO L82 PathProgramCache]: Analyzing trace with hash 833653032, now seen corresponding path program 1 times [2020-10-21 23:06:55,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:55,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448160731] [2020-10-21 23:06:55,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:55,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:55,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448160731] [2020-10-21 23:06:55,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:55,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:06:55,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126303367] [2020-10-21 23:06:55,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:06:55,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:55,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:06:55,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:06:55,703 INFO L87 Difference]: Start difference. First operand 162 states and 375 transitions. Second operand 4 states. [2020-10-21 23:06:55,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:55,721 INFO L93 Difference]: Finished difference Result 179 states and 403 transitions. [2020-10-21 23:06:55,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:06:55,721 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-21 23:06:55,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:55,722 INFO L225 Difference]: With dead ends: 179 [2020-10-21 23:06:55,722 INFO L226 Difference]: Without dead ends: 99 [2020-10-21 23:06:55,723 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 [2020-10-21 23:06:55,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-21 23:06:55,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2020-10-21 23:06:55,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-21 23:06:55,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 196 transitions. [2020-10-21 23:06:55,726 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 196 transitions. Word has length 18 [2020-10-21 23:06:55,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:55,727 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 196 transitions. [2020-10-21 23:06:55,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:06:55,727 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 196 transitions. [2020-10-21 23:06:55,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 23:06:55,728 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:55,728 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:55,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-21 23:06:55,729 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:55,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:55,729 INFO L82 PathProgramCache]: Analyzing trace with hash 721666079, now seen corresponding path program 2 times [2020-10-21 23:06:55,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:55,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722934233] [2020-10-21 23:06:55,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:55,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:55,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722934233] [2020-10-21 23:06:55,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:55,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-21 23:06:55,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658035561] [2020-10-21 23:06:55,801 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-21 23:06:55,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:55,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-21 23:06:55,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-21 23:06:55,802 INFO L87 Difference]: Start difference. First operand 98 states and 196 transitions. Second operand 7 states. [2020-10-21 23:06:55,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:55,846 INFO L93 Difference]: Finished difference Result 93 states and 190 transitions. [2020-10-21 23:06:55,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 23:06:55,846 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-21 23:06:55,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:55,847 INFO L225 Difference]: With dead ends: 93 [2020-10-21 23:06:55,847 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 23:06:55,847 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-21 23:06:55,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 23:06:55,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 23:06:55,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 23:06:55,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 23:06:55,848 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-21 23:06:55,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:55,849 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 23:06:55,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-21 23:06:55,849 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 23:06:55,849 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 23:06:55,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-21 23:06:55,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 11:06:55 BasicIcfg [2020-10-21 23:06:55,853 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 23:06:55,855 INFO L168 Benchmark]: Toolchain (without parser) took 5649.90 ms. Allocated memory was 140.0 MB in the beginning and 287.8 MB in the end (delta: 147.8 MB). Free memory was 101.6 MB in the beginning and 156.4 MB in the end (delta: -54.8 MB). Peak memory consumption was 93.0 MB. Max. memory is 7.1 GB. [2020-10-21 23:06:55,856 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-21 23:06:55,857 INFO L168 Benchmark]: CACSL2BoogieTranslator took 721.89 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 100.7 MB in the beginning and 156.5 MB in the end (delta: -55.8 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-10-21 23:06:55,858 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.28 ms. Allocated memory is still 202.9 MB. Free memory was 156.5 MB in the beginning and 154.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 23:06:55,858 INFO L168 Benchmark]: Boogie Preprocessor took 29.97 ms. Allocated memory is still 202.9 MB. Free memory was 154.5 MB in the beginning and 152.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-21 23:06:55,859 INFO L168 Benchmark]: RCFGBuilder took 507.36 ms. Allocated memory is still 202.9 MB. Free memory was 152.4 MB in the beginning and 126.4 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2020-10-21 23:06:55,860 INFO L168 Benchmark]: TraceAbstraction took 4286.40 ms. Allocated memory was 202.9 MB in the beginning and 287.8 MB in the end (delta: 84.9 MB). Free memory was 126.4 MB in the beginning and 156.4 MB in the end (delta: -29.9 MB). Peak memory consumption was 55.0 MB. Max. memory is 7.1 GB. [2020-10-21 23:06:55,864 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 721.89 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 100.7 MB in the beginning and 156.5 MB in the end (delta: -55.8 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 92.28 ms. Allocated memory is still 202.9 MB. Free memory was 156.5 MB in the beginning and 154.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.97 ms. Allocated memory is still 202.9 MB. Free memory was 154.5 MB in the beginning and 152.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 507.36 ms. Allocated memory is still 202.9 MB. Free memory was 152.4 MB in the beginning and 126.4 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4286.40 ms. Allocated memory was 202.9 MB in the beginning and 287.8 MB in the end (delta: 84.9 MB). Free memory was 126.4 MB in the beginning and 156.4 MB in the end (delta: -29.9 MB). Peak memory consumption was 55.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1133 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 62 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.1s, 100 PlacesBefore, 38 PlacesAfterwards, 90 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 7 FixpointIterations, 18 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 85 TotalNumberOfCompositions, 4371 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.1s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 230 SDtfs, 247 SDslu, 309 SDs, 0 SdLazy, 163 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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, 11 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 6252 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...