/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/safe020_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:35:42,918 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:35:42,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:35:42,943 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:35:42,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:35:42,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:35:42,946 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:35:42,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:35:42,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:35:42,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:35:42,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:35:42,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:35:42,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:35:42,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:35:42,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:35:42,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:35:42,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:35:42,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:35:42,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:35:42,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:35:42,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:35:42,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:35:42,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:35:42,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:35:42,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 18:35:42,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 18:35:42,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 18:35:42,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 18:35:42,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 18:35:42,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 18:35:42,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 18:35:42,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 18:35:42,974 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 18:35:42,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:35:42,975 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:35:42,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:35:42,977 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 18:35:42,998 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:35:42,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:35:43,000 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:35:43,000 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:35:43,000 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:35:43,000 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:35:43,001 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:35:43,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:35:43,001 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:35:43,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:35:43,001 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:35:43,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:35:43,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:35:43,002 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:35:43,002 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:35:43,002 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:35:43,002 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:35:43,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:35:43,003 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:35:43,003 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:35:43,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:35:43,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:35:43,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:35:43,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:35:43,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:35:43,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:35:43,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:35:43,005 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:35:43,005 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:35:43,005 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:35:43,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:35:43,303 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:35:43,306 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:35:43,308 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:35:43,309 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:35:43,309 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_tso.oepc.i [2020-10-15 18:35:43,390 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c526fa727/5240806f96ad4cd986a5b4ec59c3a444/FLAG65c76f8ef [2020-10-15 18:35:43,963 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:35:43,964 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_tso.oepc.i [2020-10-15 18:35:43,983 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c526fa727/5240806f96ad4cd986a5b4ec59c3a444/FLAG65c76f8ef [2020-10-15 18:35:44,233 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c526fa727/5240806f96ad4cd986a5b4ec59c3a444 [2020-10-15 18:35:44,245 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:35:44,248 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:35:44,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:35:44,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:35:44,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:35:44,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:35:44" (1/1) ... [2020-10-15 18:35:44,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c2e7388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:44, skipping insertion in model container [2020-10-15 18:35:44,258 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:35:44" (1/1) ... [2020-10-15 18:35:44,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:35:44,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:35:44,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:35:44,754 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:35:44,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:35:44,905 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:35:44,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:44 WrapperNode [2020-10-15 18:35:44,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:35:44,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:35:44,908 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:35:44,908 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:35:44,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:44" (1/1) ... [2020-10-15 18:35:44,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:44" (1/1) ... [2020-10-15 18:35:44,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:35:44,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:35:44,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:35:44,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:35:44,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:44" (1/1) ... [2020-10-15 18:35:44,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:44" (1/1) ... [2020-10-15 18:35:44,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:44" (1/1) ... [2020-10-15 18:35:44,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:44" (1/1) ... [2020-10-15 18:35:44,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:44" (1/1) ... [2020-10-15 18:35:44,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:44" (1/1) ... [2020-10-15 18:35:44,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:44" (1/1) ... [2020-10-15 18:35:45,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:35:45,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:35:45,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:35:45,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:35:45,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:44" (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 18:35:45,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:35:45,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 18:35:45,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:35:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:35:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 18:35:45,076 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 18:35:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 18:35:45,076 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 18:35:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 18:35:45,077 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 18:35:45,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 18:35:45,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:35:45,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:35:45,079 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 18:35:45,372 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:35:45,373 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 18:35:45,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:35:45 BoogieIcfgContainer [2020-10-15 18:35:45,375 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:35:45,376 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:35:45,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:35:45,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:35:45,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:35:44" (1/3) ... [2020-10-15 18:35:45,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4b6a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:35:45, skipping insertion in model container [2020-10-15 18:35:45,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:44" (2/3) ... [2020-10-15 18:35:45,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4b6a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:35:45, skipping insertion in model container [2020-10-15 18:35:45,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:35:45" (3/3) ... [2020-10-15 18:35:45,386 INFO L111 eAbstractionObserver]: Analyzing ICFG safe020_tso.oepc.i [2020-10-15 18:35:45,402 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:35:45,403 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:35:45,410 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:35:45,411 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:35:45,443 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,444 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,444 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,445 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,445 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,445 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,446 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,446 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,446 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,447 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,447 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,448 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,448 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,448 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,449 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,449 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,449 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,450 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,453 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,454 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,454 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,454 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,459 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,460 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,460 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,460 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,462 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,462 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,463 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,463 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:45,480 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 18:35:45,501 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:35:45,501 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:35:45,502 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:35:45,502 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:35:45,502 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:35:45,502 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:35:45,502 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:35:45,502 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:35:45,516 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:35:45,518 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-15 18:35:45,521 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-15 18:35:45,523 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-15 18:35:45,582 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-15 18:35:45,582 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:35:45,587 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-15 18:35:45,590 INFO L117 LiptonReduction]: Number of co-enabled transitions 1178 [2020-10-15 18:35:46,965 INFO L132 LiptonReduction]: Checked pairs total: 2372 [2020-10-15 18:35:46,965 INFO L134 LiptonReduction]: Total number of compositions: 57 [2020-10-15 18:35:46,972 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-15 18:35:46,998 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 274 states. [2020-10-15 18:35:47,000 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states. [2020-10-15 18:35:47,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 18:35:47,008 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:47,009 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:47,010 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:47,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:47,016 INFO L82 PathProgramCache]: Analyzing trace with hash 278619754, now seen corresponding path program 1 times [2020-10-15 18:35:47,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:47,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97414420] [2020-10-15 18:35:47,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:47,186 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 18:35:47,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97414420] [2020-10-15 18:35:47,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:47,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:35:47,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819232155] [2020-10-15 18:35:47,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-15 18:35:47,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:47,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-15 18:35:47,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 18:35:47,211 INFO L87 Difference]: Start difference. First operand 274 states. Second operand 2 states. [2020-10-15 18:35:47,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:47,241 INFO L93 Difference]: Finished difference Result 274 states and 786 transitions. [2020-10-15 18:35:47,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-15 18:35:47,243 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-15 18:35:47,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:47,259 INFO L225 Difference]: With dead ends: 274 [2020-10-15 18:35:47,259 INFO L226 Difference]: Without dead ends: 226 [2020-10-15 18:35:47,260 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 18:35:47,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-15 18:35:47,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-15 18:35:47,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-15 18:35:47,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 634 transitions. [2020-10-15 18:35:47,354 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 634 transitions. Word has length 8 [2020-10-15 18:35:47,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:47,356 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 634 transitions. [2020-10-15 18:35:47,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-15 18:35:47,357 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 634 transitions. [2020-10-15 18:35:47,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 18:35:47,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:47,360 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:47,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:35:47,360 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:47,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:47,361 INFO L82 PathProgramCache]: Analyzing trace with hash 47263938, now seen corresponding path program 1 times [2020-10-15 18:35:47,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:47,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434681264] [2020-10-15 18:35:47,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:47,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:47,523 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 18:35:47,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434681264] [2020-10-15 18:35:47,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:47,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:35:47,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966103829] [2020-10-15 18:35:47,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:35:47,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:47,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:35:47,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:35:47,528 INFO L87 Difference]: Start difference. First operand 226 states and 634 transitions. Second operand 5 states. [2020-10-15 18:35:47,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:47,602 INFO L93 Difference]: Finished difference Result 250 states and 668 transitions. [2020-10-15 18:35:47,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 18:35:47,602 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-15 18:35:47,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:47,605 INFO L225 Difference]: With dead ends: 250 [2020-10-15 18:35:47,605 INFO L226 Difference]: Without dead ends: 202 [2020-10-15 18:35:47,606 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:35:47,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-15 18:35:47,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-15 18:35:47,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-15 18:35:47,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 552 transitions. [2020-10-15 18:35:47,625 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 552 transitions. Word has length 9 [2020-10-15 18:35:47,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:47,626 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 552 transitions. [2020-10-15 18:35:47,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:35:47,626 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 552 transitions. [2020-10-15 18:35:47,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 18:35:47,628 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:47,628 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:47,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:35:47,628 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:47,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:47,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1465143248, now seen corresponding path program 1 times [2020-10-15 18:35:47,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:47,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691401856] [2020-10-15 18:35:47,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:47,729 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 18:35:47,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691401856] [2020-10-15 18:35:47,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:47,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:35:47,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300333241] [2020-10-15 18:35:47,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 18:35:47,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:47,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 18:35:47,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:35:47,733 INFO L87 Difference]: Start difference. First operand 202 states and 552 transitions. Second operand 6 states. [2020-10-15 18:35:47,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:47,865 INFO L93 Difference]: Finished difference Result 262 states and 697 transitions. [2020-10-15 18:35:47,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 18:35:47,865 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-15 18:35:47,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:47,867 INFO L225 Difference]: With dead ends: 262 [2020-10-15 18:35:47,867 INFO L226 Difference]: Without dead ends: 154 [2020-10-15 18:35:47,868 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-15 18:35:47,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-15 18:35:47,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-10-15 18:35:47,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-15 18:35:47,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 392 transitions. [2020-10-15 18:35:47,878 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 392 transitions. Word has length 10 [2020-10-15 18:35:47,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:47,878 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 392 transitions. [2020-10-15 18:35:47,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 18:35:47,879 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 392 transitions. [2020-10-15 18:35:47,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 18:35:47,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:47,880 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:47,880 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:35:47,881 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:47,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:47,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1312152701, now seen corresponding path program 1 times [2020-10-15 18:35:47,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:47,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835654607] [2020-10-15 18:35:47,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:47,937 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 18:35:47,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835654607] [2020-10-15 18:35:47,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:47,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:35:47,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776612593] [2020-10-15 18:35:47,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:35:47,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:47,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:35:47,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:35:47,939 INFO L87 Difference]: Start difference. First operand 154 states and 392 transitions. Second operand 4 states. [2020-10-15 18:35:47,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:47,958 INFO L93 Difference]: Finished difference Result 174 states and 426 transitions. [2020-10-15 18:35:47,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:35:47,958 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-15 18:35:47,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:47,960 INFO L225 Difference]: With dead ends: 174 [2020-10-15 18:35:47,960 INFO L226 Difference]: Without dead ends: 150 [2020-10-15 18:35:47,961 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 [2020-10-15 18:35:47,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-15 18:35:47,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-10-15 18:35:47,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-15 18:35:47,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 378 transitions. [2020-10-15 18:35:47,969 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 378 transitions. Word has length 11 [2020-10-15 18:35:47,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:47,969 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 378 transitions. [2020-10-15 18:35:47,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:35:47,970 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 378 transitions. [2020-10-15 18:35:47,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 18:35:47,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:47,971 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:47,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 18:35:47,971 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:47,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:47,972 INFO L82 PathProgramCache]: Analyzing trace with hash 266026162, now seen corresponding path program 1 times [2020-10-15 18:35:47,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:47,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707723633] [2020-10-15 18:35:47,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:47,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:48,046 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 18:35:48,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707723633] [2020-10-15 18:35:48,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:48,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:35:48,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169615668] [2020-10-15 18:35:48,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:35:48,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:48,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:35:48,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:35:48,049 INFO L87 Difference]: Start difference. First operand 150 states and 378 transitions. Second operand 4 states. [2020-10-15 18:35:48,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:48,078 INFO L93 Difference]: Finished difference Result 164 states and 376 transitions. [2020-10-15 18:35:48,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:35:48,079 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 18:35:48,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:48,080 INFO L225 Difference]: With dead ends: 164 [2020-10-15 18:35:48,080 INFO L226 Difference]: Without dead ends: 128 [2020-10-15 18:35:48,081 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 18:35:48,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-15 18:35:48,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-10-15 18:35:48,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-15 18:35:48,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 293 transitions. [2020-10-15 18:35:48,087 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 293 transitions. Word has length 12 [2020-10-15 18:35:48,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:48,087 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 293 transitions. [2020-10-15 18:35:48,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:35:48,087 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 293 transitions. [2020-10-15 18:35:48,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:35:48,088 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:48,089 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:48,089 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 18:35:48,089 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:48,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:48,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1292455845, now seen corresponding path program 1 times [2020-10-15 18:35:48,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:48,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694828830] [2020-10-15 18:35:48,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:48,153 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 18:35:48,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694828830] [2020-10-15 18:35:48,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:48,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:35:48,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333816280] [2020-10-15 18:35:48,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:35:48,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:48,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:35:48,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:35:48,155 INFO L87 Difference]: Start difference. First operand 128 states and 293 transitions. Second operand 5 states. [2020-10-15 18:35:48,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:48,193 INFO L93 Difference]: Finished difference Result 116 states and 240 transitions. [2020-10-15 18:35:48,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:35:48,193 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 18:35:48,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:48,194 INFO L225 Difference]: With dead ends: 116 [2020-10-15 18:35:48,194 INFO L226 Difference]: Without dead ends: 92 [2020-10-15 18:35:48,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:35:48,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-15 18:35:48,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-10-15 18:35:48,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-15 18:35:48,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 186 transitions. [2020-10-15 18:35:48,199 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 186 transitions. Word has length 13 [2020-10-15 18:35:48,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:48,199 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 186 transitions. [2020-10-15 18:35:48,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:35:48,199 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 186 transitions. [2020-10-15 18:35:48,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 18:35:48,200 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:48,200 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:48,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 18:35:48,201 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:48,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:48,201 INFO L82 PathProgramCache]: Analyzing trace with hash -228576461, now seen corresponding path program 1 times [2020-10-15 18:35:48,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:48,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342700559] [2020-10-15 18:35:48,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:48,243 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 18:35:48,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342700559] [2020-10-15 18:35:48,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:48,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:35:48,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2801376] [2020-10-15 18:35:48,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:35:48,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:48,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:35:48,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:35:48,246 INFO L87 Difference]: Start difference. First operand 92 states and 186 transitions. Second operand 4 states. [2020-10-15 18:35:48,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:48,266 INFO L93 Difference]: Finished difference Result 120 states and 228 transitions. [2020-10-15 18:35:48,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:35:48,266 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-15 18:35:48,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:48,267 INFO L225 Difference]: With dead ends: 120 [2020-10-15 18:35:48,267 INFO L226 Difference]: Without dead ends: 94 [2020-10-15 18:35:48,268 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 18:35:48,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-10-15 18:35:48,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2020-10-15 18:35:48,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-15 18:35:48,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 175 transitions. [2020-10-15 18:35:48,273 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 175 transitions. Word has length 14 [2020-10-15 18:35:48,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:48,273 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 175 transitions. [2020-10-15 18:35:48,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:35:48,273 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 175 transitions. [2020-10-15 18:35:48,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:35:48,274 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:48,274 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:48,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 18:35:48,275 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:48,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:48,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1357686433, now seen corresponding path program 1 times [2020-10-15 18:35:48,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:48,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350534185] [2020-10-15 18:35:48,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:48,319 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 18:35:48,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350534185] [2020-10-15 18:35:48,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:48,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:35:48,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140679681] [2020-10-15 18:35:48,320 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:35:48,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:48,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:35:48,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:35:48,321 INFO L87 Difference]: Start difference. First operand 90 states and 175 transitions. Second operand 5 states. [2020-10-15 18:35:48,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:48,347 INFO L93 Difference]: Finished difference Result 113 states and 209 transitions. [2020-10-15 18:35:48,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:35:48,348 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-15 18:35:48,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:48,349 INFO L225 Difference]: With dead ends: 113 [2020-10-15 18:35:48,349 INFO L226 Difference]: Without dead ends: 70 [2020-10-15 18:35:48,349 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 18:35:48,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-15 18:35:48,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2020-10-15 18:35:48,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-15 18:35:48,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 115 transitions. [2020-10-15 18:35:48,352 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 115 transitions. Word has length 15 [2020-10-15 18:35:48,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:48,352 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 115 transitions. [2020-10-15 18:35:48,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:35:48,353 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 115 transitions. [2020-10-15 18:35:48,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:35:48,353 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:48,353 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:48,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 18:35:48,354 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:48,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:48,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1504039886, now seen corresponding path program 1 times [2020-10-15 18:35:48,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:48,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257896651] [2020-10-15 18:35:48,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:48,416 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 18:35:48,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257896651] [2020-10-15 18:35:48,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:48,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:35:48,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588132423] [2020-10-15 18:35:48,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 18:35:48,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:48,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 18:35:48,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:35:48,418 INFO L87 Difference]: Start difference. First operand 68 states and 115 transitions. Second operand 6 states. [2020-10-15 18:35:48,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:48,447 INFO L93 Difference]: Finished difference Result 58 states and 100 transitions. [2020-10-15 18:35:48,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:35:48,447 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-15 18:35:48,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:48,448 INFO L225 Difference]: With dead ends: 58 [2020-10-15 18:35:48,448 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 18:35:48,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:35:48,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 18:35:48,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 18:35:48,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 18:35:48,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 18:35:48,449 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-15 18:35:48,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:48,449 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 18:35:48,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 18:35:48,449 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 18:35:48,450 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 18:35:48,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 18:35:48,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:35:48 BasicIcfg [2020-10-15 18:35:48,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:35:48,456 INFO L168 Benchmark]: Toolchain (without parser) took 4207.98 ms. Allocated memory was 248.0 MB in the beginning and 368.1 MB in the end (delta: 120.1 MB). Free memory was 203.3 MB in the beginning and 241.8 MB in the end (delta: -38.5 MB). Peak memory consumption was 81.6 MB. Max. memory is 14.2 GB. [2020-10-15 18:35:48,457 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 248.0 MB. Free memory is still 224.4 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 18:35:48,458 INFO L168 Benchmark]: CACSL2BoogieTranslator took 657.92 ms. Allocated memory was 248.0 MB in the beginning and 306.2 MB in the end (delta: 58.2 MB). Free memory was 203.3 MB in the beginning and 261.3 MB in the end (delta: -58.0 MB). Peak memory consumption was 33.1 MB. Max. memory is 14.2 GB. [2020-10-15 18:35:48,458 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.98 ms. Allocated memory is still 306.2 MB. Free memory is still 258.8 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 18:35:48,459 INFO L168 Benchmark]: Boogie Preprocessor took 27.94 ms. Allocated memory is still 306.2 MB. Free memory was 258.8 MB in the beginning and 256.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:35:48,460 INFO L168 Benchmark]: RCFGBuilder took 373.78 ms. Allocated memory is still 306.2 MB. Free memory was 256.3 MB in the beginning and 234.2 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 14.2 GB. [2020-10-15 18:35:48,461 INFO L168 Benchmark]: TraceAbstraction took 3077.38 ms. Allocated memory was 306.2 MB in the beginning and 368.1 MB in the end (delta: 61.9 MB). Free memory was 234.2 MB in the beginning and 241.8 MB in the end (delta: -7.7 MB). Peak memory consumption was 54.2 MB. Max. memory is 14.2 GB. [2020-10-15 18:35:48,465 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 248.0 MB. Free memory is still 224.4 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 657.92 ms. Allocated memory was 248.0 MB in the beginning and 306.2 MB in the end (delta: 58.2 MB). Free memory was 203.3 MB in the beginning and 261.3 MB in the end (delta: -58.0 MB). Peak memory consumption was 33.1 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 64.98 ms. Allocated memory is still 306.2 MB. Free memory is still 258.8 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Preprocessor took 27.94 ms. Allocated memory is still 306.2 MB. Free memory was 258.8 MB in the beginning and 256.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 373.78 ms. Allocated memory is still 306.2 MB. Free memory was 256.3 MB in the beginning and 234.2 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3077.38 ms. Allocated memory was 306.2 MB in the beginning and 368.1 MB in the end (delta: 61.9 MB). Free memory was 234.2 MB in the beginning and 241.8 MB in the end (delta: -7.7 MB). Peak memory consumption was 54.2 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 738 VarBasedMoverChecksPositive, 34 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 44 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 76 PlacesBefore, 31 PlacesAfterwards, 68 TransitionsBefore, 22 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 57 TotalNumberOfCompositions, 2372 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, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 178 SDtfs, 200 SDslu, 303 SDs, 0 SdLazy, 161 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred 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, 9 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 3626 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...