/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-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe006_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 00:33:13,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 00:33:13,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 00:33:13,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 00:33:13,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 00:33:13,974 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 00:33:13,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 00:33:13,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 00:33:13,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 00:33:13,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 00:33:13,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 00:33:13,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 00:33:13,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 00:33:13,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 00:33:13,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 00:33:13,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 00:33:13,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 00:33:14,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 00:33:14,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 00:33:14,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 00:33:14,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 00:33:14,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 00:33:14,006 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 00:33:14,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 00:33:14,008 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 00:33:14,008 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 00:33:14,009 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 00:33:14,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 00:33:14,010 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 00:33:14,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 00:33:14,011 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 00:33:14,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 00:33:14,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 00:33:14,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 00:33:14,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 00:33:14,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 00:33:14,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 00:33:14,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 00:33:14,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 00:33:14,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 00:33:14,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 00:33:14,017 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-McrAutomaton-WP.epf [2020-10-22 00:33:14,038 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 00:33:14,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 00:33:14,040 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 00:33:14,040 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 00:33:14,040 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 00:33:14,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 00:33:14,040 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 00:33:14,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 00:33:14,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 00:33:14,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 00:33:14,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 00:33:14,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 00:33:14,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 00:33:14,042 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 00:33:14,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 00:33:14,042 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 00:33:14,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 00:33:14,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 00:33:14,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 00:33:14,043 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 00:33:14,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 00:33:14,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 00:33:14,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 00:33:14,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 00:33:14,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 00:33:14,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 00:33:14,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 00:33:14,045 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 00:33:14,045 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 00:33:14,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 00:33:14,045 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 00:33:14,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 00:33:14,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 00:33:14,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 00:33:14,349 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 00:33:14,350 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 00:33:14,350 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_tso.opt.i [2020-10-22 00:33:14,424 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ad77cb0c/752e0e7d748542a9be42a7ff3b64c42a/FLAG965d113c9 [2020-10-22 00:33:14,954 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 00:33:14,954 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_tso.opt.i [2020-10-22 00:33:14,967 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ad77cb0c/752e0e7d748542a9be42a7ff3b64c42a/FLAG965d113c9 [2020-10-22 00:33:15,238 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ad77cb0c/752e0e7d748542a9be42a7ff3b64c42a [2020-10-22 00:33:15,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 00:33:15,260 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 00:33:15,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 00:33:15,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 00:33:15,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 00:33:15,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:33:15" (1/1) ... [2020-10-22 00:33:15,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2917af62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:15, skipping insertion in model container [2020-10-22 00:33:15,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:33:15" (1/1) ... [2020-10-22 00:33:15,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 00:33:15,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 00:33:15,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:33:15,830 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 00:33:15,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:33:15,965 INFO L208 MainTranslator]: Completed translation [2020-10-22 00:33:15,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:15 WrapperNode [2020-10-22 00:33:15,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 00:33:15,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 00:33:15,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 00:33:15,967 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 00:33:15,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:15" (1/1) ... [2020-10-22 00:33:15,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:15" (1/1) ... [2020-10-22 00:33:16,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 00:33:16,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 00:33:16,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 00:33:16,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 00:33:16,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:15" (1/1) ... [2020-10-22 00:33:16,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:15" (1/1) ... [2020-10-22 00:33:16,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:15" (1/1) ... [2020-10-22 00:33:16,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:15" (1/1) ... [2020-10-22 00:33:16,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:15" (1/1) ... [2020-10-22 00:33:16,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:15" (1/1) ... [2020-10-22 00:33:16,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:15" (1/1) ... [2020-10-22 00:33:16,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 00:33:16,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 00:33:16,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 00:33:16,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 00:33:16,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:15" (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 [2020-10-22 00:33:16,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 00:33:16,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 00:33:16,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 00:33:16,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 00:33:16,125 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 00:33:16,125 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 00:33:16,125 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 00:33:16,125 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 00:33:16,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 00:33:16,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 00:33:16,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 00:33:16,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 00:33:16,128 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 00:33:16,489 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 00:33:16,489 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 00:33:16,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:33:16 BoogieIcfgContainer [2020-10-22 00:33:16,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 00:33:16,493 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 00:33:16,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 00:33:16,497 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 00:33:16,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 12:33:15" (1/3) ... [2020-10-22 00:33:16,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16793791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:33:16, skipping insertion in model container [2020-10-22 00:33:16,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:33:15" (2/3) ... [2020-10-22 00:33:16,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16793791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:33:16, skipping insertion in model container [2020-10-22 00:33:16,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:33:16" (3/3) ... [2020-10-22 00:33:16,501 INFO L111 eAbstractionObserver]: Analyzing ICFG safe006_tso.opt.i [2020-10-22 00:33:16,512 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 00:33:16,513 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 00:33:16,520 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 00:33:16,521 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 00:33:16,547 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:16,548 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:16,548 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:16,549 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:16,549 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:16,549 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:16,550 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:16,550 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:16,550 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:16,551 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:16,551 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:16,551 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:16,555 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:16,555 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:16,556 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:16,556 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:16,565 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:16,565 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:16,566 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:16,566 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:33:16,568 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 00:33:16,582 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-22 00:33:16,601 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 00:33:16,601 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 00:33:16,602 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 00:33:16,602 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 00:33:16,602 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 00:33:16,602 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 00:33:16,602 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 00:33:16,602 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 00:33:16,616 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 00:33:16,617 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 65 transitions, 140 flow [2020-10-22 00:33:16,620 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 65 transitions, 140 flow [2020-10-22 00:33:16,622 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 140 flow [2020-10-22 00:33:16,667 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2020-10-22 00:33:16,668 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 00:33:16,672 INFO L80 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-10-22 00:33:16,674 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-10-22 00:33:17,013 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-10-22 00:33:18,072 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-10-22 00:33:18,362 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-22 00:33:18,472 INFO L131 LiptonReduction]: Checked pairs total: 1892 [2020-10-22 00:33:18,473 INFO L133 LiptonReduction]: Total number of compositions: 66 [2020-10-22 00:33:18,479 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2020-10-22 00:33:18,493 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2020-10-22 00:33:18,496 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-10-22 00:33:18,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-22 00:33:18,502 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:33:18,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-22 00:33:18,504 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:33:18,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:33:18,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1281927427, now seen corresponding path program 1 times [2020-10-22 00:33:18,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:33:18,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588028439] [2020-10-22 00:33:18,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:33:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:33:18,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:33:18,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588028439] [2020-10-22 00:33:18,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:33:18,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:33:18,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1286439609] [2020-10-22 00:33:18,703 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:33:18,706 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:33:18,720 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-10-22 00:33:18,720 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:33:18,724 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:33:18,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-22 00:33:18,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:33:18,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-22 00:33:18,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 00:33:18,744 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-10-22 00:33:18,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:33:18,762 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2020-10-22 00:33:18,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-22 00:33:18,763 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-10-22 00:33:18,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:33:18,777 INFO L225 Difference]: With dead ends: 90 [2020-10-22 00:33:18,778 INFO L226 Difference]: Without dead ends: 74 [2020-10-22 00:33:18,779 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 [2020-10-22 00:33:18,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-22 00:33:18,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-22 00:33:18,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-22 00:33:18,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2020-10-22 00:33:18,825 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2020-10-22 00:33:18,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:33:18,826 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2020-10-22 00:33:18,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-22 00:33:18,826 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2020-10-22 00:33:18,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-22 00:33:18,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:33:18,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:33:18,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 00:33:18,827 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:33:18,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:33:18,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1085050971, now seen corresponding path program 1 times [2020-10-22 00:33:18,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:33:18,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920938003] [2020-10-22 00:33:18,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:33:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:33:18,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:33:18,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920938003] [2020-10-22 00:33:18,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:33:18,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:33:18,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [53934202] [2020-10-22 00:33:18,950 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:33:18,951 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:33:18,952 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-10-22 00:33:18,952 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:33:18,953 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:33:18,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:33:18,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:33:18,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:33:18,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:33:18,955 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 4 states. [2020-10-22 00:33:18,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:33:18,989 INFO L93 Difference]: Finished difference Result 82 states and 166 transitions. [2020-10-22 00:33:18,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:33:18,990 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-22 00:33:18,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:33:18,991 INFO L225 Difference]: With dead ends: 82 [2020-10-22 00:33:18,991 INFO L226 Difference]: Without dead ends: 66 [2020-10-22 00:33:18,992 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 [2020-10-22 00:33:18,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-22 00:33:19,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-22 00:33:19,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-22 00:33:19,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 138 transitions. [2020-10-22 00:33:19,002 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 138 transitions. Word has length 7 [2020-10-22 00:33:19,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:33:19,002 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 138 transitions. [2020-10-22 00:33:19,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:33:19,003 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 138 transitions. [2020-10-22 00:33:19,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 00:33:19,003 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:33:19,004 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:33:19,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 00:33:19,004 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:33:19,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:33:19,004 INFO L82 PathProgramCache]: Analyzing trace with hash 608100949, now seen corresponding path program 1 times [2020-10-22 00:33:19,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:33:19,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124333371] [2020-10-22 00:33:19,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:33:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:33:19,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:33:19,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124333371] [2020-10-22 00:33:19,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:33:19,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 00:33:19,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [105800090] [2020-10-22 00:33:19,101 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:33:19,102 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:33:19,104 INFO L252 McrAutomatonBuilder]: Finished intersection with 12 states and 14 transitions. [2020-10-22 00:33:19,104 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:33:19,155 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [718#(not (= ~y~0 1))] [2020-10-22 00:33:19,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 00:33:19,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:33:19,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 00:33:19,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:33:19,156 INFO L87 Difference]: Start difference. First operand 66 states and 138 transitions. Second operand 7 states. [2020-10-22 00:33:19,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:33:19,287 INFO L93 Difference]: Finished difference Result 78 states and 155 transitions. [2020-10-22 00:33:19,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-22 00:33:19,287 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2020-10-22 00:33:19,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:33:19,288 INFO L225 Difference]: With dead ends: 78 [2020-10-22 00:33:19,288 INFO L226 Difference]: Without dead ends: 36 [2020-10-22 00:33:19,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-22 00:33:19,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-22 00:33:19,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-22 00:33:19,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-22 00:33:19,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 64 transitions. [2020-10-22 00:33:19,294 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 64 transitions. Word has length 8 [2020-10-22 00:33:19,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:33:19,294 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 64 transitions. [2020-10-22 00:33:19,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 00:33:19,295 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 64 transitions. [2020-10-22 00:33:19,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 00:33:19,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:33:19,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:33:19,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 00:33:19,296 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:33:19,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:33:19,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1657564646, now seen corresponding path program 1 times [2020-10-22 00:33:19,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:33:19,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148301579] [2020-10-22 00:33:19,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:33:19,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:33:19,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:33:19,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148301579] [2020-10-22 00:33:19,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:33:19,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 00:33:19,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1623713500] [2020-10-22 00:33:19,371 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:33:19,372 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:33:19,374 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 16 transitions. [2020-10-22 00:33:19,374 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:33:19,396 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [887#(not (= ~x~0 1))] [2020-10-22 00:33:19,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 00:33:19,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:33:19,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 00:33:19,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:33:19,398 INFO L87 Difference]: Start difference. First operand 36 states and 64 transitions. Second operand 7 states. [2020-10-22 00:33:19,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:33:19,519 INFO L93 Difference]: Finished difference Result 30 states and 51 transitions. [2020-10-22 00:33:19,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-22 00:33:19,520 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2020-10-22 00:33:19,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:33:19,520 INFO L225 Difference]: With dead ends: 30 [2020-10-22 00:33:19,520 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 00:33:19,521 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-22 00:33:19,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 00:33:19,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 00:33:19,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 00:33:19,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 00:33:19,522 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-10-22 00:33:19,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:33:19,522 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 00:33:19,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 00:33:19,522 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 00:33:19,522 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 00:33:19,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 00:33:19,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 12:33:19 BasicIcfg [2020-10-22 00:33:19,526 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 00:33:19,528 INFO L168 Benchmark]: Toolchain (without parser) took 4274.50 ms. Allocated memory was 137.9 MB in the beginning and 251.1 MB in the end (delta: 113.2 MB). Free memory was 99.6 MB in the beginning and 206.4 MB in the end (delta: -106.9 MB). Peak memory consumption was 6.4 MB. Max. memory is 7.1 GB. [2020-10-22 00:33:19,529 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-22 00:33:19,530 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.32 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 98.5 MB in the beginning and 154.3 MB in the end (delta: -55.8 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-10-22 00:33:19,531 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.66 ms. Allocated memory is still 200.3 MB. Free memory was 154.3 MB in the beginning and 152.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-22 00:33:19,532 INFO L168 Benchmark]: Boogie Preprocessor took 28.81 ms. Allocated memory is still 200.3 MB. Free memory was 152.3 MB in the beginning and 150.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-22 00:33:19,533 INFO L168 Benchmark]: RCFGBuilder took 441.89 ms. Allocated memory is still 200.3 MB. Free memory was 150.9 MB in the beginning and 128.9 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-10-22 00:33:19,533 INFO L168 Benchmark]: TraceAbstraction took 3033.23 ms. Allocated memory was 200.3 MB in the beginning and 251.1 MB in the end (delta: 50.9 MB). Free memory was 128.2 MB in the beginning and 206.4 MB in the end (delta: -78.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-22 00:33:19,538 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 705.32 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 98.5 MB in the beginning and 154.3 MB in the end (delta: -55.8 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.66 ms. Allocated memory is still 200.3 MB. Free memory was 154.3 MB in the beginning and 152.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.81 ms. Allocated memory is still 200.3 MB. Free memory was 152.3 MB in the beginning and 150.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 441.89 ms. Allocated memory is still 200.3 MB. Free memory was 150.9 MB in the beginning and 128.9 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3033.23 ms. Allocated memory was 200.3 MB in the beginning and 251.1 MB in the end (delta: 50.9 MB). Free memory was 128.2 MB in the beginning and 206.4 MB in the end (delta: -78.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 449 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 23 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.8s, 69 PlacesBefore, 23 PlacesAfterwards, 65 TransitionsBefore, 17 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 66 TotalNumberOfCompositions, 1892 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 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 51 SDtfs, 85 SDslu, 68 SDs, 0 SdLazy, 83 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 1063 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...