/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 17:29:39,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 17:29:39,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 17:29:39,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-10 17:29:39,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 17:29:39,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 17:29:39,554 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 17:29:39,554 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-03-10 17:29:39,596 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 17:29:39,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 17:29:39,597 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 17:29:39,597 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 17:29:39,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 17:29:39,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 17:29:39,601 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 17:29:39,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 17:29:39,601 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 17:29:39,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 17:29:39,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 17:29:39,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 17:29:39,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 17:29:39,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 17:29:39,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 17:29:39,603 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 17:29:39,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 17:29:39,603 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 17:29:39,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 17:29:39,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 17:29:39,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 17:29:39,603 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 17:29:39,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 17:29:39,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 17:29:39,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 17:29:39,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 17:29:39,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 17:29:39,604 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 17:29:39,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 17:29:39,605 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 17:29:39,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 17:29:39,605 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 17:29:39,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 17:29:39,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 17:29:39,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 17:29:39,947 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 17:29:39,949 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 17:29:39,950 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2021-03-10 17:29:40,006 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/885b8be23/4f96a0aa69d94fd28ad97edaebea57ef/FLAG5b2b8c4b5 [2021-03-10 17:29:40,550 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 17:29:40,551 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2021-03-10 17:29:40,571 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/885b8be23/4f96a0aa69d94fd28ad97edaebea57ef/FLAG5b2b8c4b5 [2021-03-10 17:29:40,991 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/885b8be23/4f96a0aa69d94fd28ad97edaebea57ef [2021-03-10 17:29:40,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 17:29:40,998 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 17:29:40,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 17:29:41,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 17:29:41,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 17:29:41,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:29:40" (1/1) ... [2021-03-10 17:29:41,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d9b0612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:29:41, skipping insertion in model container [2021-03-10 17:29:41,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:29:40" (1/1) ... [2021-03-10 17:29:41,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 17:29:41,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 17:29:41,189 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i[950,963] [2021-03-10 17:29:41,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:29:41,297 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 17:29:41,306 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i[950,963] [2021-03-10 17:29:41,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:29:41,407 INFO L208 MainTranslator]: Completed translation [2021-03-10 17:29:41,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:29:41 WrapperNode [2021-03-10 17:29:41,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 17:29:41,410 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 17:29:41,410 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 17:29:41,410 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 17:29:41,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:29:41" (1/1) ... [2021-03-10 17:29:41,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:29:41" (1/1) ... [2021-03-10 17:29:41,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 17:29:41,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 17:29:41,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 17:29:41,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 17:29:41,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:29:41" (1/1) ... [2021-03-10 17:29:41,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:29:41" (1/1) ... [2021-03-10 17:29:41,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:29:41" (1/1) ... [2021-03-10 17:29:41,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:29:41" (1/1) ... [2021-03-10 17:29:41,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:29:41" (1/1) ... [2021-03-10 17:29:41,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:29:41" (1/1) ... [2021-03-10 17:29:41,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:29:41" (1/1) ... [2021-03-10 17:29:41,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 17:29:41,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 17:29:41,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 17:29:41,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 17:29:41,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:29:41" (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 [2021-03-10 17:29:41,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 17:29:41,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-10 17:29:41,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 17:29:41,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 17:29:41,570 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-10 17:29:41,571 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-10 17:29:41,572 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-10 17:29:41,572 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-10 17:29:41,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-10 17:29:41,572 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-10 17:29:41,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 17:29:41,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 17:29:41,573 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 17:29:41,868 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 17:29:41,869 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-10 17:29:41,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:29:41 BoogieIcfgContainer [2021-03-10 17:29:41,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 17:29:41,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 17:29:41,872 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 17:29:41,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 17:29:41,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 05:29:40" (1/3) ... [2021-03-10 17:29:41,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77cfcd4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:29:41, skipping insertion in model container [2021-03-10 17:29:41,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:29:41" (2/3) ... [2021-03-10 17:29:41,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77cfcd4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:29:41, skipping insertion in model container [2021-03-10 17:29:41,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:29:41" (3/3) ... [2021-03-10 17:29:41,877 INFO L111 eAbstractionObserver]: Analyzing ICFG safe010_tso.oepc.i [2021-03-10 17:29:41,882 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 17:29:41,882 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 17:29:41,886 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-10 17:29:41,887 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 17:29:41,911 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,911 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,911 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,911 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,911 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,911 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,912 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,912 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,912 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,912 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,912 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,912 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,913 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,913 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,914 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,914 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,918 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,919 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,919 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,919 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,924 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,924 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,924 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,924 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:29:41,928 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-10 17:29:41,942 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-10 17:29:41,958 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 17:29:41,959 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 17:29:41,959 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 17:29:41,959 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 17:29:41,959 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 17:29:41,959 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 17:29:41,959 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 17:29:41,959 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 17:29:41,968 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 65 places, 60 transitions, 130 flow [2021-03-10 17:29:42,030 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1173 states, 1171 states have (on average 2.713919726729291) internal successors, (3178), 1172 states have internal predecessors, (3178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:29:42,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 1173 states, 1171 states have (on average 2.713919726729291) internal successors, (3178), 1172 states have internal predecessors, (3178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:29:42,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-10 17:29:42,063 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:29:42,064 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:29:42,064 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:29:42,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:29:42,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1167644432, now seen corresponding path program 1 times [2021-03-10 17:29:42,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:29:42,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391409414] [2021-03-10 17:29:42,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:29:42,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:29:42,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:29:42,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391409414] [2021-03-10 17:29:42,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:29:42,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:29:42,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300077736] [2021-03-10 17:29:42,469 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:29:42,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:29:42,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:29:42,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:29:42,488 INFO L87 Difference]: Start difference. First operand has 1173 states, 1171 states have (on average 2.713919726729291) internal successors, (3178), 1172 states have internal predecessors, (3178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:29:42,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:29:42,734 INFO L93 Difference]: Finished difference Result 2196 states and 5642 transitions. [2021-03-10 17:29:42,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-10 17:29:42,736 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-10 17:29:42,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:29:42,749 INFO L225 Difference]: With dead ends: 2196 [2021-03-10 17:29:42,749 INFO L226 Difference]: Without dead ends: 719 [2021-03-10 17:29:42,750 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 177.3ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:29:42,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2021-03-10 17:29:42,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 599. [2021-03-10 17:29:42,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 598 states have (on average 2.4531772575250836) internal successors, (1467), 598 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:29:42,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 1467 transitions. [2021-03-10 17:29:42,812 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 1467 transitions. Word has length 34 [2021-03-10 17:29:42,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:29:42,813 INFO L480 AbstractCegarLoop]: Abstraction has 599 states and 1467 transitions. [2021-03-10 17:29:42,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:29:42,813 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 1467 transitions. [2021-03-10 17:29:42,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 17:29:42,816 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:29:42,816 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:29:42,816 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 17:29:42,816 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:29:42,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:29:42,817 INFO L82 PathProgramCache]: Analyzing trace with hash 487544847, now seen corresponding path program 1 times [2021-03-10 17:29:42,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:29:42,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492764242] [2021-03-10 17:29:42,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:29:42,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:29:42,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:29:42,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492764242] [2021-03-10 17:29:42,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:29:42,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:29:42,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176836723] [2021-03-10 17:29:42,945 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:29:42,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:29:42,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:29:42,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:29:42,951 INFO L87 Difference]: Start difference. First operand 599 states and 1467 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:29:43,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:29:43,090 INFO L93 Difference]: Finished difference Result 677 states and 1616 transitions. [2021-03-10 17:29:43,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 17:29:43,090 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 17:29:43,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:29:43,092 INFO L225 Difference]: With dead ends: 677 [2021-03-10 17:29:43,092 INFO L226 Difference]: Without dead ends: 292 [2021-03-10 17:29:43,093 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 149.8ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-03-10 17:29:43,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-03-10 17:29:43,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2021-03-10 17:29:43,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 291 states have (on average 2.2336769759450172) internal successors, (650), 291 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:29:43,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 650 transitions. [2021-03-10 17:29:43,114 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 650 transitions. Word has length 36 [2021-03-10 17:29:43,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:29:43,114 INFO L480 AbstractCegarLoop]: Abstraction has 292 states and 650 transitions. [2021-03-10 17:29:43,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:29:43,115 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 650 transitions. [2021-03-10 17:29:43,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-03-10 17:29:43,116 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:29:43,116 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:29:43,116 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 17:29:43,116 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:29:43,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:29:43,118 INFO L82 PathProgramCache]: Analyzing trace with hash -207790036, now seen corresponding path program 1 times [2021-03-10 17:29:43,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:29:43,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386294453] [2021-03-10 17:29:43,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:29:43,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:29:43,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:29:43,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386294453] [2021-03-10 17:29:43,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:29:43,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:29:43,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152623619] [2021-03-10 17:29:43,256 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:29:43,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:29:43,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:29:43,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:29:43,259 INFO L87 Difference]: Start difference. First operand 292 states and 650 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:29:43,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:29:43,347 INFO L93 Difference]: Finished difference Result 289 states and 622 transitions. [2021-03-10 17:29:43,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 17:29:43,347 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-03-10 17:29:43,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:29:43,348 INFO L225 Difference]: With dead ends: 289 [2021-03-10 17:29:43,348 INFO L226 Difference]: Without dead ends: 217 [2021-03-10 17:29:43,349 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 85.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:29:43,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-03-10 17:29:43,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2021-03-10 17:29:43,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 216 states have (on average 2.1064814814814814) internal successors, (455), 216 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:29:43,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 455 transitions. [2021-03-10 17:29:43,356 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 455 transitions. Word has length 39 [2021-03-10 17:29:43,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:29:43,357 INFO L480 AbstractCegarLoop]: Abstraction has 217 states and 455 transitions. [2021-03-10 17:29:43,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:29:43,357 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 455 transitions. [2021-03-10 17:29:43,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 17:29:43,359 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:29:43,359 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:29:43,359 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 17:29:43,359 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:29:43,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:29:43,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1394037103, now seen corresponding path program 1 times [2021-03-10 17:29:43,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:29:43,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225045562] [2021-03-10 17:29:43,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:29:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:29:43,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:29:43,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225045562] [2021-03-10 17:29:43,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:29:43,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:29:43,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848462942] [2021-03-10 17:29:43,484 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:29:43,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:29:43,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:29:43,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:29:43,485 INFO L87 Difference]: Start difference. First operand 217 states and 455 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:29:43,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:29:43,537 INFO L93 Difference]: Finished difference Result 118 states and 224 transitions. [2021-03-10 17:29:43,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-10 17:29:43,537 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 17:29:43,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:29:43,538 INFO L225 Difference]: With dead ends: 118 [2021-03-10 17:29:43,538 INFO L226 Difference]: Without dead ends: 0 [2021-03-10 17:29:43,538 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 71.5ms TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:29:43,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-10 17:29:43,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-10 17:29:43,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:29:43,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-10 17:29:43,539 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2021-03-10 17:29:43,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:29:43,540 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-10 17:29:43,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:29:43,540 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-10 17:29:43,540 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-10 17:29:43,541 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-10 17:29:43,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 05:29:43 BasicIcfg [2021-03-10 17:29:43,544 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 17:29:43,549 INFO L168 Benchmark]: Toolchain (without parser) took 2550.20 ms. Allocated memory was 255.9 MB in the beginning and 348.1 MB in the end (delta: 92.3 MB). Free memory was 233.0 MB in the beginning and 237.6 MB in the end (delta: -4.5 MB). Peak memory consumption was 87.1 MB. Max. memory is 16.0 GB. [2021-03-10 17:29:43,549 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 17:29:43,550 INFO L168 Benchmark]: CACSL2BoogieTranslator took 409.34 ms. Allocated memory was 255.9 MB in the beginning and 348.1 MB in the end (delta: 92.3 MB). Free memory was 232.6 MB in the beginning and 311.0 MB in the end (delta: -78.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-10 17:29:43,551 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.70 ms. Allocated memory is still 348.1 MB. Free memory was 311.0 MB in the beginning and 309.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 17:29:43,551 INFO L168 Benchmark]: Boogie Preprocessor took 30.85 ms. Allocated memory is still 348.1 MB. Free memory was 309.4 MB in the beginning and 308.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 17:29:43,551 INFO L168 Benchmark]: RCFGBuilder took 389.75 ms. Allocated memory is still 348.1 MB. Free memory was 307.8 MB in the beginning and 287.9 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-03-10 17:29:43,554 INFO L168 Benchmark]: TraceAbstraction took 1672.62 ms. Allocated memory is still 348.1 MB. Free memory was 287.8 MB in the beginning and 237.6 MB in the end (delta: 50.2 MB). Peak memory consumption was 53.4 MB. Max. memory is 16.0 GB. [2021-03-10 17:29:43,559 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 409.34 ms. Allocated memory was 255.9 MB in the beginning and 348.1 MB in the end (delta: 92.3 MB). Free memory was 232.6 MB in the beginning and 311.0 MB in the end (delta: -78.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 38.70 ms. Allocated memory is still 348.1 MB. Free memory was 311.0 MB in the beginning and 309.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.85 ms. Allocated memory is still 348.1 MB. Free memory was 309.4 MB in the beginning and 308.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 389.75 ms. Allocated memory is still 348.1 MB. Free memory was 307.8 MB in the beginning and 287.9 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1672.62 ms. Allocated memory is still 348.1 MB. Free memory was 287.8 MB in the beginning and 237.6 MB in the end (delta: 50.2 MB). Peak memory consumption was 53.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1584.7ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 38.9ms, AutomataDifference: 572.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 70.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 256 SDtfs, 420 SDslu, 893 SDs, 0 SdLazy, 118 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 99.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 484.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1173occurred in iteration=0, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 79.3ms AutomataMinimizationTime, 4 MinimizatonAttempts, 120 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.3ms SsaConstructionTime, 137.9ms SatisfiabilityAnalysisTime, 530.0ms InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 145 ConstructedInterpolants, 0 QuantifiedInterpolants, 529 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...