/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/safe033_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 17:36:00,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 17:36:00,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 17:36:00,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-10 17:36:00,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 17:36:00,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 17:36:00,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 17:36:00,498 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 17:36:00,525 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 17:36:00,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 17:36:00,526 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 17:36:00,526 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 17:36:00,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 17:36:00,527 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 17:36:00,527 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 17:36:00,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 17:36:00,527 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 17:36:00,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 17:36:00,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 17:36:00,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 17:36:00,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 17:36:00,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 17:36:00,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 17:36:00,528 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 17:36:00,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 17:36:00,528 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 17:36:00,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 17:36:00,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 17:36:00,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 17:36:00,528 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 17:36:00,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 17:36:00,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 17:36:00,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 17:36:00,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 17:36:00,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 17:36:00,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 17:36:00,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 17:36:00,529 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 17:36:00,529 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 17:36:00,530 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 17:36:00,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 17:36:00,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 17:36:00,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 17:36:00,760 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 17:36:00,761 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 17:36:00,762 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i [2021-03-10 17:36:00,809 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bbc847c9/cbd78a14174f4ea5940aac391f8c6b9d/FLAGfecc760ba [2021-03-10 17:36:01,266 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 17:36:01,267 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i [2021-03-10 17:36:01,282 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bbc847c9/cbd78a14174f4ea5940aac391f8c6b9d/FLAGfecc760ba [2021-03-10 17:36:01,295 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bbc847c9/cbd78a14174f4ea5940aac391f8c6b9d [2021-03-10 17:36:01,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 17:36:01,303 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 17:36:01,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 17:36:01,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 17:36:01,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 17:36:01,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:36:01" (1/1) ... [2021-03-10 17:36:01,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fb68e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:01, skipping insertion in model container [2021-03-10 17:36:01,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:36:01" (1/1) ... [2021-03-10 17:36:01,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 17:36:01,349 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 17:36:01,518 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/safe033_tso.opt.i[949,962] [2021-03-10 17:36:01,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:36:01,656 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 17:36:01,665 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/safe033_tso.opt.i[949,962] [2021-03-10 17:36:01,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:36:01,735 INFO L208 MainTranslator]: Completed translation [2021-03-10 17:36:01,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:01 WrapperNode [2021-03-10 17:36:01,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 17:36:01,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 17:36:01,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 17:36:01,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 17:36:01,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:01" (1/1) ... [2021-03-10 17:36:01,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:01" (1/1) ... [2021-03-10 17:36:01,762 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 17:36:01,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 17:36:01,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 17:36:01,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 17:36:01,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:01" (1/1) ... [2021-03-10 17:36:01,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:01" (1/1) ... [2021-03-10 17:36:01,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:01" (1/1) ... [2021-03-10 17:36:01,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:01" (1/1) ... [2021-03-10 17:36:01,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:01" (1/1) ... [2021-03-10 17:36:01,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:01" (1/1) ... [2021-03-10 17:36:01,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:01" (1/1) ... [2021-03-10 17:36:01,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 17:36:01,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 17:36:01,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 17:36:01,789 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 17:36:01,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:01" (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 17:36:01,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 17:36:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-10 17:36:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 17:36:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 17:36:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-10 17:36:01,836 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-10 17:36:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-10 17:36:01,836 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-10 17:36:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-10 17:36:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-10 17:36:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 17:36:01,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 17:36:01,837 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 17:36:02,133 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 17:36:02,133 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-10 17:36:02,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:36:02 BoogieIcfgContainer [2021-03-10 17:36:02,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 17:36:02,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 17:36:02,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 17:36:02,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 17:36:02,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 05:36:01" (1/3) ... [2021-03-10 17:36:02,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c8c2d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:36:02, skipping insertion in model container [2021-03-10 17:36:02,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:01" (2/3) ... [2021-03-10 17:36:02,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c8c2d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:36:02, skipping insertion in model container [2021-03-10 17:36:02,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:36:02" (3/3) ... [2021-03-10 17:36:02,140 INFO L111 eAbstractionObserver]: Analyzing ICFG safe033_tso.opt.i [2021-03-10 17:36:02,144 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 17:36:02,144 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 17:36:02,147 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-10 17:36:02,147 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 17:36:02,167 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,167 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,167 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,167 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,167 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,167 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,167 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,168 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,168 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,168 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,168 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,168 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,169 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,169 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,169 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,169 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,169 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,170 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,170 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,170 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,170 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,171 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,171 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,171 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,173 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,173 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,173 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,173 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,176 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,177 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,177 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,177 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:02,178 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-10 17:36:02,190 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-10 17:36:02,209 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 17:36:02,209 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 17:36:02,209 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 17:36:02,209 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 17:36:02,209 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 17:36:02,209 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 17:36:02,209 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 17:36:02,209 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 17:36:02,218 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 65 places, 60 transitions, 130 flow [2021-03-10 17:36:02,264 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 17:36:02,267 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 17:36:02,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-10 17:36:02,284 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:36:02,284 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 17:36:02,285 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:36:02,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:36:02,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1320378557, now seen corresponding path program 1 times [2021-03-10 17:36:02,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:36:02,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448411743] [2021-03-10 17:36:02,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:36:02,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:36:02,608 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 17:36:02,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448411743] [2021-03-10 17:36:02,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:36:02,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:36:02,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870291479] [2021-03-10 17:36:02,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:36:02,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:36:02,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:36:02,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:36:02,627 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 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 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 17:36:02,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:36:02,799 INFO L93 Difference]: Finished difference Result 1628 states and 4248 transitions. [2021-03-10 17:36:02,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 17:36:02,800 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 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 17:36:02,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:36:02,813 INFO L225 Difference]: With dead ends: 1628 [2021-03-10 17:36:02,813 INFO L226 Difference]: Without dead ends: 647 [2021-03-10 17:36:02,814 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 156.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:36:02,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2021-03-10 17:36:02,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 647. [2021-03-10 17:36:02,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 646 states have (on average 2.541795665634675) internal successors, (1642), 646 states have internal predecessors, (1642), 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 17:36:02,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 1642 transitions. [2021-03-10 17:36:02,880 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 1642 transitions. Word has length 34 [2021-03-10 17:36:02,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:36:02,880 INFO L480 AbstractCegarLoop]: Abstraction has 647 states and 1642 transitions. [2021-03-10 17:36:02,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 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 17:36:02,881 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 1642 transitions. [2021-03-10 17:36:02,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 17:36:02,882 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:36:02,882 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 17:36:02,883 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 17:36:02,883 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:36:02,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:36:02,885 INFO L82 PathProgramCache]: Analyzing trace with hash -952843324, now seen corresponding path program 1 times [2021-03-10 17:36:02,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:36:02,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316918746] [2021-03-10 17:36:02,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:36:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:36:02,994 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 17:36:02,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316918746] [2021-03-10 17:36:02,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:36:02,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:36:02,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390284283] [2021-03-10 17:36:02,998 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:36:02,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:36:03,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:36:03,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:36:03,002 INFO L87 Difference]: Start difference. First operand 647 states and 1642 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 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 17:36:03,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:36:03,112 INFO L93 Difference]: Finished difference Result 703 states and 1721 transitions. [2021-03-10 17:36:03,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 17:36:03,113 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 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 17:36:03,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:36:03,116 INFO L225 Difference]: With dead ends: 703 [2021-03-10 17:36:03,117 INFO L226 Difference]: Without dead ends: 507 [2021-03-10 17:36:03,117 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 87.2ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:36:03,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2021-03-10 17:36:03,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2021-03-10 17:36:03,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 506 states have (on average 2.4150197628458496) internal successors, (1222), 506 states have internal predecessors, (1222), 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 17:36:03,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 1222 transitions. [2021-03-10 17:36:03,129 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 1222 transitions. Word has length 36 [2021-03-10 17:36:03,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:36:03,129 INFO L480 AbstractCegarLoop]: Abstraction has 507 states and 1222 transitions. [2021-03-10 17:36:03,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 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 17:36:03,129 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 1222 transitions. [2021-03-10 17:36:03,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-03-10 17:36:03,130 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:36:03,130 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] [2021-03-10 17:36:03,131 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 17:36:03,131 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:36:03,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:36:03,136 INFO L82 PathProgramCache]: Analyzing trace with hash 773672005, now seen corresponding path program 1 times [2021-03-10 17:36:03,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:36:03,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113470931] [2021-03-10 17:36:03,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:36:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:36:03,242 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 17:36:03,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113470931] [2021-03-10 17:36:03,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:36:03,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:36:03,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687489442] [2021-03-10 17:36:03,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:36:03,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:36:03,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:36:03,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:36:03,244 INFO L87 Difference]: Start difference. First operand 507 states and 1222 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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 17:36:03,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:36:03,363 INFO L93 Difference]: Finished difference Result 375 states and 849 transitions. [2021-03-10 17:36:03,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 17:36:03,364 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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 38 [2021-03-10 17:36:03,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:36:03,365 INFO L225 Difference]: With dead ends: 375 [2021-03-10 17:36:03,365 INFO L226 Difference]: Without dead ends: 243 [2021-03-10 17:36:03,365 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 111.7ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-03-10 17:36:03,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-03-10 17:36:03,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2021-03-10 17:36:03,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 242 states have (on average 2.1404958677685952) internal successors, (518), 242 states have internal predecessors, (518), 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 17:36:03,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 518 transitions. [2021-03-10 17:36:03,370 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 518 transitions. Word has length 38 [2021-03-10 17:36:03,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:36:03,371 INFO L480 AbstractCegarLoop]: Abstraction has 243 states and 518 transitions. [2021-03-10 17:36:03,371 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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 17:36:03,371 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 518 transitions. [2021-03-10 17:36:03,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-03-10 17:36:03,373 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:36:03,373 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, 1, 1] [2021-03-10 17:36:03,376 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 17:36:03,376 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:36:03,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:36:03,377 INFO L82 PathProgramCache]: Analyzing trace with hash -901681465, now seen corresponding path program 1 times [2021-03-10 17:36:03,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:36:03,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419013543] [2021-03-10 17:36:03,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:36:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:36:03,459 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 17:36:03,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419013543] [2021-03-10 17:36:03,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:36:03,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:36:03,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845485270] [2021-03-10 17:36:03,460 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:36:03,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:36:03,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:36:03,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:36:03,461 INFO L87 Difference]: Start difference. First operand 243 states and 518 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 17:36:03,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:36:03,515 INFO L93 Difference]: Finished difference Result 364 states and 789 transitions. [2021-03-10 17:36:03,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-10 17:36:03,516 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 42 [2021-03-10 17:36:03,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:36:03,518 INFO L225 Difference]: With dead ends: 364 [2021-03-10 17:36:03,518 INFO L226 Difference]: Without dead ends: 211 [2021-03-10 17:36:03,518 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 59.7ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-03-10 17:36:03,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-03-10 17:36:03,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 203. [2021-03-10 17:36:03,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 202 states have (on average 2.108910891089109) internal successors, (426), 202 states have internal predecessors, (426), 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 17:36:03,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 426 transitions. [2021-03-10 17:36:03,523 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 426 transitions. Word has length 42 [2021-03-10 17:36:03,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:36:03,524 INFO L480 AbstractCegarLoop]: Abstraction has 203 states and 426 transitions. [2021-03-10 17:36:03,524 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 17:36:03,524 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 426 transitions. [2021-03-10 17:36:03,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-03-10 17:36:03,525 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:36:03,525 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, 1, 1] [2021-03-10 17:36:03,525 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-10 17:36:03,525 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:36:03,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:36:03,525 INFO L82 PathProgramCache]: Analyzing trace with hash -48176603, now seen corresponding path program 2 times [2021-03-10 17:36:03,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:36:03,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514042176] [2021-03-10 17:36:03,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:36:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:36:03,624 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 17:36:03,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514042176] [2021-03-10 17:36:03,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:36:03,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:36:03,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368158428] [2021-03-10 17:36:03,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:36:03,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:36:03,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:36:03,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:36:03,626 INFO L87 Difference]: Start difference. First operand 203 states and 426 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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 17:36:03,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:36:03,693 INFO L93 Difference]: Finished difference Result 193 states and 402 transitions. [2021-03-10 17:36:03,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-10 17:36:03,693 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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 42 [2021-03-10 17:36:03,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:36:03,694 INFO L225 Difference]: With dead ends: 193 [2021-03-10 17:36:03,694 INFO L226 Difference]: Without dead ends: 0 [2021-03-10 17:36:03,694 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 81.1ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:36:03,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-10 17:36:03,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-10 17:36:03,698 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 17:36:03,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-10 17:36:03,698 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2021-03-10 17:36:03,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:36:03,699 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-10 17:36:03,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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 17:36:03,699 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-10 17:36:03,700 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-10 17:36:03,700 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-10 17:36:03,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 05:36:03 BasicIcfg [2021-03-10 17:36:03,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 17:36:03,704 INFO L168 Benchmark]: Toolchain (without parser) took 2403.30 ms. Allocated memory was 255.9 MB in the beginning and 377.5 MB in the end (delta: 121.6 MB). Free memory was 235.3 MB in the beginning and 276.8 MB in the end (delta: -41.5 MB). Peak memory consumption was 78.7 MB. Max. memory is 16.0 GB. [2021-03-10 17:36:03,704 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 17:36:03,705 INFO L168 Benchmark]: CACSL2BoogieTranslator took 431.66 ms. Allocated memory was 255.9 MB in the beginning and 377.5 MB in the end (delta: 121.6 MB). Free memory was 234.6 MB in the beginning and 340.6 MB in the end (delta: -106.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-10 17:36:03,708 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.16 ms. Allocated memory is still 377.5 MB. Free memory was 340.6 MB in the beginning and 338.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 17:36:03,709 INFO L168 Benchmark]: Boogie Preprocessor took 25.81 ms. Allocated memory is still 377.5 MB. Free memory was 338.5 MB in the beginning and 337.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 17:36:03,709 INFO L168 Benchmark]: RCFGBuilder took 345.63 ms. Allocated memory is still 377.5 MB. Free memory was 337.3 MB in the beginning and 355.2 MB in the end (delta: -17.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-10 17:36:03,709 INFO L168 Benchmark]: TraceAbstraction took 1567.41 ms. Allocated memory is still 377.5 MB. Free memory was 354.8 MB in the beginning and 276.8 MB in the end (delta: 78.0 MB). Peak memory consumption was 78.0 MB. Max. memory is 16.0 GB. [2021-03-10 17:36:03,713 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 431.66 ms. Allocated memory was 255.9 MB in the beginning and 377.5 MB in the end (delta: 121.6 MB). Free memory was 234.6 MB in the beginning and 340.6 MB in the end (delta: -106.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 26.16 ms. Allocated memory is still 377.5 MB. Free memory was 340.6 MB in the beginning and 338.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 25.81 ms. Allocated memory is still 377.5 MB. Free memory was 338.5 MB in the beginning and 337.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 345.63 ms. Allocated memory is still 377.5 MB. Free memory was 337.3 MB in the beginning and 355.2 MB in the end (delta: -17.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1567.41 ms. Allocated memory is still 377.5 MB. Free memory was 354.8 MB in the beginning and 276.8 MB in the end (delta: 78.0 MB). Peak memory consumption was 78.0 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: 1493.1ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 24.3ms, AutomataDifference: 566.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 55.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 323 SDtfs, 415 SDslu, 1008 SDs, 0 SdLazy, 140 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 103.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 496.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1173occurred in iteration=0, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 81.5ms AutomataMinimizationTime, 5 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.7ms SsaConstructionTime, 144.2ms SatisfiabilityAnalysisTime, 461.2ms InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 187 ConstructedInterpolants, 0 QuantifiedInterpolants, 591 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...