/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe006_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:02:16,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:02:16,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:02:16,797 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:02:16,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:02:16,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:02:16,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:02:16,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:02:16,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:02:16,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:02:16,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:02:16,826 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:02:16,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:02:16,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:02:16,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:02:16,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:02:16,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:02:16,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:02:16,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:02:16,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:02:16,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:02:16,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:02:16,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:02:16,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:02:16,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 17:02:16,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:02:16,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:02:16,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:02:16,880 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:02:16,881 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:02:16,881 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:02:16,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:02:16,883 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:02:16,883 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:02:16,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:02:16,885 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:02:16,887 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-SP.epf [2020-11-09 17:02:16,914 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:02:16,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:02:16,916 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:02:16,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:02:16,916 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:02:16,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:02:16,917 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:02:16,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:02:16,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:02:16,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:02:16,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:02:16,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:02:16,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:02:16,918 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:02:16,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:02:16,919 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:02:16,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:02:16,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:02:16,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:02:16,920 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:02:16,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:02:16,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:02:16,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:02:16,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:02:16,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:02:16,921 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:02:16,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:02:16,921 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:02:16,921 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:02:16,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:02:16,922 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:02:17,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:02:17,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:02:17,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:02:17,381 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:02:17,382 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:02:17,383 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_tso.opt.i [2020-11-09 17:02:17,473 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d58252f95/5e717d82141546309c446eec2eb9bd08/FLAG578ee10fb [2020-11-09 17:02:18,202 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:02:18,202 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_tso.opt.i [2020-11-09 17:02:18,218 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d58252f95/5e717d82141546309c446eec2eb9bd08/FLAG578ee10fb [2020-11-09 17:02:18,482 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d58252f95/5e717d82141546309c446eec2eb9bd08 [2020-11-09 17:02:18,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:02:18,495 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:02:18,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:02:18,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:02:18,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:02:18,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:02:18" (1/1) ... [2020-11-09 17:02:18,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65a4e847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:18, skipping insertion in model container [2020-11-09 17:02:18,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:02:18" (1/1) ... [2020-11-09 17:02:18,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:02:18,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:02:18,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:02:18,935 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:02:18,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:02:19,148 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:02:19,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:19 WrapperNode [2020-11-09 17:02:19,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:02:19,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:02:19,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:02:19,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:02:19,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:19" (1/1) ... [2020-11-09 17:02:19,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:19" (1/1) ... [2020-11-09 17:02:19,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:02:19,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:02:19,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:02:19,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:02:19,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:19" (1/1) ... [2020-11-09 17:02:19,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:19" (1/1) ... [2020-11-09 17:02:19,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:19" (1/1) ... [2020-11-09 17:02:19,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:19" (1/1) ... [2020-11-09 17:02:19,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:19" (1/1) ... [2020-11-09 17:02:19,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:19" (1/1) ... [2020-11-09 17:02:19,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:19" (1/1) ... [2020-11-09 17:02:19,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:02:19,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:02:19,233 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:02:19,233 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:02:19,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:02:19,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:02:19,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 17:02:19,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:02:19,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:02:19,327 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 17:02:19,327 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 17:02:19,327 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 17:02:19,327 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 17:02:19,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:02:19,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 17:02:19,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:02:19,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:02:19,330 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 17:02:19,783 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:02:19,784 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 17:02:19,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:02:19 BoogieIcfgContainer [2020-11-09 17:02:19,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:02:19,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:02:19,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:02:19,793 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:02:19,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:02:18" (1/3) ... [2020-11-09 17:02:19,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9f9d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:02:19, skipping insertion in model container [2020-11-09 17:02:19,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:02:19" (2/3) ... [2020-11-09 17:02:19,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9f9d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:02:19, skipping insertion in model container [2020-11-09 17:02:19,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:02:19" (3/3) ... [2020-11-09 17:02:19,798 INFO L111 eAbstractionObserver]: Analyzing ICFG safe006_tso.opt.i [2020-11-09 17:02:19,816 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:02:19,816 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:02:19,820 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:02:19,822 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:02:19,858 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,859 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,859 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,859 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,860 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,860 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,861 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,861 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,861 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,861 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,862 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,862 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,862 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,863 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,863 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,863 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,867 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,867 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,876 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,877 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,877 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,877 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:02:19,881 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:02:19,897 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-09 17:02:19,922 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:02:19,922 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:02:19,922 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:02:19,922 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:02:19,923 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:02:19,923 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:02:19,923 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:02:19,923 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:02:19,936 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:02:19,937 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 65 transitions, 140 flow [2020-11-09 17:02:19,941 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 65 transitions, 140 flow [2020-11-09 17:02:19,943 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 140 flow [2020-11-09 17:02:19,990 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2020-11-09 17:02:19,993 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 17:02:19,999 INFO L84 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. [2020-11-09 17:02:20,003 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-11-09 17:02:21,073 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-11-09 17:02:24,469 WARN L194 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-11-09 17:02:24,580 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-11-09 17:02:24,790 WARN L194 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-11-09 17:02:24,896 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-11-09 17:02:25,537 WARN L194 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 17:02:25,693 WARN L194 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 17:02:26,102 WARN L194 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 17:02:26,283 WARN L194 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 17:02:26,349 INFO L131 LiptonReduction]: Checked pairs total: 1892 [2020-11-09 17:02:26,349 INFO L133 LiptonReduction]: Total number of compositions: 66 [2020-11-09 17:02:26,355 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2020-11-09 17:02:26,367 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2020-11-09 17:02:26,370 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-11-09 17:02:26,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-09 17:02:26,377 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:02:26,377 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-09 17:02:26,378 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:02:26,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:02:26,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1281927427, now seen corresponding path program 1 times [2020-11-09 17:02:26,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:02:26,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717317665] [2020-11-09 17:02:26,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:02:26,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:02:26,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:02:26,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717317665] [2020-11-09 17:02:26,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:02:26,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:02:26,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [844552242] [2020-11-09 17:02:26,682 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:02:26,689 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:02:26,704 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-11-09 17:02:26,704 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:02:26,712 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:02:26,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 17:02:26,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:02:26,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 17:02:26,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 17:02:26,735 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-11-09 17:02:26,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:02:26,754 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2020-11-09 17:02:26,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 17:02:26,756 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-11-09 17:02:26,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:02:26,770 INFO L225 Difference]: With dead ends: 90 [2020-11-09 17:02:26,772 INFO L226 Difference]: Without dead ends: 74 [2020-11-09 17:02:26,773 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 [2020-11-09 17:02:26,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-11-09 17:02:26,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-11-09 17:02:26,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-11-09 17:02:26,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2020-11-09 17:02:26,839 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2020-11-09 17:02:26,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:02:26,842 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2020-11-09 17:02:26,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 17:02:26,842 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2020-11-09 17:02:26,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-09 17:02:26,848 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:02:26,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:02:26,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:02:26,850 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:02:26,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:02:26,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1085050971, now seen corresponding path program 1 times [2020-11-09 17:02:26,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:02:26,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660490153] [2020-11-09 17:02:26,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:02:26,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:02:27,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:02:27,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660490153] [2020-11-09 17:02:27,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:02:27,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:02:27,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1208058757] [2020-11-09 17:02:27,049 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:02:27,050 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:02:27,051 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-11-09 17:02:27,051 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:02:27,052 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:02:27,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:02:27,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:02:27,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:02:27,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:02:27,055 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 5 states. [2020-11-09 17:02:27,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:02:27,194 INFO L93 Difference]: Finished difference Result 82 states and 166 transitions. [2020-11-09 17:02:27,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:02:27,197 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-11-09 17:02:27,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:02:27,198 INFO L225 Difference]: With dead ends: 82 [2020-11-09 17:02:27,198 INFO L226 Difference]: Without dead ends: 66 [2020-11-09 17:02:27,201 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 [2020-11-09 17:02:27,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-11-09 17:02:27,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-11-09 17:02:27,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-11-09 17:02:27,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 138 transitions. [2020-11-09 17:02:27,218 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 138 transitions. Word has length 7 [2020-11-09 17:02:27,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:02:27,219 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 138 transitions. [2020-11-09 17:02:27,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:02:27,219 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 138 transitions. [2020-11-09 17:02:27,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 17:02:27,221 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:02:27,221 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:02:27,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:02:27,222 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:02:27,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:02:27,228 INFO L82 PathProgramCache]: Analyzing trace with hash 608100949, now seen corresponding path program 1 times [2020-11-09 17:02:27,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:02:27,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850332495] [2020-11-09 17:02:27,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:02:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:02:27,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:02:27,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850332495] [2020-11-09 17:02:27,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:02:27,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:02:27,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [4761065] [2020-11-09 17:02:27,408 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:02:27,411 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:02:27,415 INFO L252 McrAutomatonBuilder]: Finished intersection with 12 states and 14 transitions. [2020-11-09 17:02:27,415 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:02:27,466 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [721#(not (= ~y~0 1))] [2020-11-09 17:02:27,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 17:02:27,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:02:27,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 17:02:27,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:02:27,468 INFO L87 Difference]: Start difference. First operand 66 states and 138 transitions. Second operand 7 states. [2020-11-09 17:02:27,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:02:27,687 INFO L93 Difference]: Finished difference Result 78 states and 155 transitions. [2020-11-09 17:02:27,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-09 17:02:27,689 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2020-11-09 17:02:27,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:02:27,690 INFO L225 Difference]: With dead ends: 78 [2020-11-09 17:02:27,690 INFO L226 Difference]: Without dead ends: 36 [2020-11-09 17:02:27,690 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-11-09 17:02:27,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-09 17:02:27,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-09 17:02:27,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-09 17:02:27,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 64 transitions. [2020-11-09 17:02:27,698 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 64 transitions. Word has length 8 [2020-11-09 17:02:27,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:02:27,698 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 64 transitions. [2020-11-09 17:02:27,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 17:02:27,699 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 64 transitions. [2020-11-09 17:02:27,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 17:02:27,700 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:02:27,700 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:02:27,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:02:27,700 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:02:27,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:02:27,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1657564646, now seen corresponding path program 1 times [2020-11-09 17:02:27,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:02:27,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796518181] [2020-11-09 17:02:27,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:02:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:02:27,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:02:27,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796518181] [2020-11-09 17:02:27,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:02:27,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:02:27,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1419159836] [2020-11-09 17:02:27,800 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:02:27,801 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:02:27,803 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 16 transitions. [2020-11-09 17:02:27,803 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:02:27,820 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:02:27,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:02:27,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:02:27,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:02:27,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:02:27,822 INFO L87 Difference]: Start difference. First operand 36 states and 64 transitions. Second operand 5 states. [2020-11-09 17:02:27,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:02:27,911 INFO L93 Difference]: Finished difference Result 30 states and 51 transitions. [2020-11-09 17:02:27,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 17:02:27,912 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-09 17:02:27,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:02:27,913 INFO L225 Difference]: With dead ends: 30 [2020-11-09 17:02:27,913 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 17:02:27,914 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-09 17:02:27,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 17:02:27,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 17:02:27,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 17:02:27,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 17:02:27,915 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-11-09 17:02:27,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:02:27,915 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 17:02:27,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:02:27,915 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 17:02:27,916 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 17:02:27,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:02:27,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:02:27 BasicIcfg [2020-11-09 17:02:27,919 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:02:27,921 INFO L168 Benchmark]: Toolchain (without parser) took 9429.76 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 125.2 MB in the beginning and 112.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 44.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:02:27,922 INFO L168 Benchmark]: CDTParser took 0.82 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 123.8 MB in the end (delta: 74.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:02:27,923 INFO L168 Benchmark]: CACSL2BoogieTranslator took 651.50 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 126.9 MB in the end (delta: -2.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 8.0 GB. [2020-11-09 17:02:27,924 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.70 ms. Allocated memory is still 151.0 MB. Free memory was 126.9 MB in the beginning and 124.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:02:27,925 INFO L168 Benchmark]: Boogie Preprocessor took 30.05 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 123.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:02:27,926 INFO L168 Benchmark]: RCFGBuilder took 554.48 ms. Allocated memory is still 151.0 MB. Free memory was 123.2 MB in the beginning and 103.3 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-11-09 17:02:27,927 INFO L168 Benchmark]: TraceAbstraction took 8130.46 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 103.3 MB in the beginning and 112.2 MB in the end (delta: -8.9 MB). Peak memory consumption was 22.5 MB. Max. memory is 8.0 GB. [2020-11-09 17:02:27,931 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 123.8 MB in the end (delta: 74.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 651.50 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 126.9 MB in the end (delta: -2.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 51.70 ms. Allocated memory is still 151.0 MB. Free memory was 126.9 MB in the beginning and 124.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.05 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 123.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 554.48 ms. Allocated memory is still 151.0 MB. Free memory was 123.2 MB in the beginning and 103.3 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8130.46 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 103.3 MB in the beginning and 112.2 MB in the end (delta: -8.9 MB). Peak memory consumption was 22.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 451 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 23 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.4s, 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: 7.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.4s, HoareTripleCheckerStatistics: 53 SDtfs, 81 SDslu, 76 SDs, 0 SdLazy, 62 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 904 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...