/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/thin002_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 17:37:01,835 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 17:37:01,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 17:37:01,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-10 17:37:01,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 17:37:01,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 17:37:01,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 17:37:01,923 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 17:37:01,950 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 17:37:01,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 17:37:01,951 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 17:37:01,951 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 17:37:01,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 17:37:01,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 17:37:01,953 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 17:37:01,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 17:37:01,954 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 17:37:01,954 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 17:37:01,954 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 17:37:01,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 17:37:01,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 17:37:01,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 17:37:01,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 17:37:01,955 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 17:37:01,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 17:37:01,955 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 17:37:01,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 17:37:01,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 17:37:01,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 17:37:01,955 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 17:37:01,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 17:37:01,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 17:37:01,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 17:37:01,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 17:37:01,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 17:37:01,956 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 17:37:01,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 17:37:01,956 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 17:37:01,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 17:37:01,956 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 17:37:02,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 17:37:02,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 17:37:02,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 17:37:02,223 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 17:37:02,224 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 17:37:02,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i [2021-03-10 17:37:02,270 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f3487ccb/003bb96763b946d3809904bd8e7b9587/FLAG70c2a427d [2021-03-10 17:37:02,726 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 17:37:02,727 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i [2021-03-10 17:37:02,740 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f3487ccb/003bb96763b946d3809904bd8e7b9587/FLAG70c2a427d [2021-03-10 17:37:02,755 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f3487ccb/003bb96763b946d3809904bd8e7b9587 [2021-03-10 17:37:02,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 17:37:02,760 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 17:37:02,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 17:37:02,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 17:37:02,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 17:37:02,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:37:02" (1/1) ... [2021-03-10 17:37:02,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3758c6d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:37:02, skipping insertion in model container [2021-03-10 17:37:02,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:37:02" (1/1) ... [2021-03-10 17:37:02,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 17:37:02,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 17:37:02,944 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/thin002_pso.opt.i[949,962] [2021-03-10 17:37:03,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:37:03,091 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 17:37:03,099 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/thin002_pso.opt.i[949,962] [2021-03-10 17:37:03,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:37:03,183 INFO L208 MainTranslator]: Completed translation [2021-03-10 17:37:03,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:37:03 WrapperNode [2021-03-10 17:37:03,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 17:37:03,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 17:37:03,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 17:37:03,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 17:37:03,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:37:03" (1/1) ... [2021-03-10 17:37:03,214 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:37:03" (1/1) ... [2021-03-10 17:37:03,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 17:37:03,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 17:37:03,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 17:37:03,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 17:37:03,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:37:03" (1/1) ... [2021-03-10 17:37:03,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:37:03" (1/1) ... [2021-03-10 17:37:03,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:37:03" (1/1) ... [2021-03-10 17:37:03,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:37:03" (1/1) ... [2021-03-10 17:37:03,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:37:03" (1/1) ... [2021-03-10 17:37:03,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:37:03" (1/1) ... [2021-03-10 17:37:03,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:37:03" (1/1) ... [2021-03-10 17:37:03,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 17:37:03,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 17:37:03,261 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 17:37:03,261 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 17:37:03,262 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:37:03" (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 17:37:03,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 17:37:03,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-10 17:37:03,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 17:37:03,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 17:37:03,314 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-10 17:37:03,315 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-10 17:37:03,315 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-10 17:37:03,315 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-10 17:37:03,315 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-10 17:37:03,315 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-10 17:37:03,315 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-10 17:37:03,315 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-10 17:37:03,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-10 17:37:03,315 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-10 17:37:03,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 17:37:03,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 17:37:03,316 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 17:37:03,600 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 17:37:03,600 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-10 17:37:03,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:37:03 BoogieIcfgContainer [2021-03-10 17:37:03,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 17:37:03,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 17:37:03,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 17:37:03,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 17:37:03,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 05:37:02" (1/3) ... [2021-03-10 17:37:03,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e3617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:37:03, skipping insertion in model container [2021-03-10 17:37:03,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:37:03" (2/3) ... [2021-03-10 17:37:03,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e3617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:37:03, skipping insertion in model container [2021-03-10 17:37:03,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:37:03" (3/3) ... [2021-03-10 17:37:03,606 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_pso.opt.i [2021-03-10 17:37:03,609 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 17:37:03,609 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 17:37:03,612 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-10 17:37:03,613 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 17:37:03,631 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,631 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,631 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,631 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,631 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,631 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,631 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,632 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,632 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,632 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,632 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,632 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,632 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,632 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,633 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,633 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,633 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,633 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,633 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,633 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,633 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,633 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,634 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,634 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,634 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,634 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,634 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,634 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,634 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,635 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,635 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,635 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,635 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,635 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,635 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,635 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,635 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,636 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,636 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,636 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,636 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,636 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,636 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,636 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,636 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,636 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,637 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,637 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,638 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,638 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,638 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,638 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,641 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,641 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,642 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,642 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,643 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,643 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,643 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,643 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,644 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,645 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:37:03,645 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-10 17:37:03,656 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-10 17:37:03,668 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 17:37:03,668 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 17:37:03,668 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 17:37:03,668 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 17:37:03,668 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 17:37:03,669 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 17:37:03,669 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 17:37:03,669 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 17:37:03,675 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 102 places, 91 transitions, 202 flow [2021-03-10 17:37:12,902 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 66446 states, 66444 states have (on average 4.439813978688821) internal successors, (294999), 66445 states have internal predecessors, (294999), 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 17:37:13,020 INFO L276 IsEmpty]: Start isEmpty. Operand has 66446 states, 66444 states have (on average 4.439813978688821) internal successors, (294999), 66445 states have internal predecessors, (294999), 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 17:37:13,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-03-10 17:37:13,073 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:37:13,074 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, 1, 1, 1, 1, 1] [2021-03-10 17:37:13,074 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:37:13,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:37:13,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1187004493, now seen corresponding path program 1 times [2021-03-10 17:37:13,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:37:13,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258055023] [2021-03-10 17:37:13,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:37:13,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:37:13,407 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 17:37:13,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258055023] [2021-03-10 17:37:13,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:37:13,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:37:13,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084681071] [2021-03-10 17:37:13,411 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:37:13,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:37:13,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:37:13,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:37:13,512 INFO L87 Difference]: Start difference. First operand has 66446 states, 66444 states have (on average 4.439813978688821) internal successors, (294999), 66445 states have internal predecessors, (294999), 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 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 17:37:14,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:37:14,638 INFO L93 Difference]: Finished difference Result 90113 states and 391529 transitions. [2021-03-10 17:37:14,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 17:37:14,640 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 47 [2021-03-10 17:37:14,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:37:14,894 INFO L225 Difference]: With dead ends: 90113 [2021-03-10 17:37:14,894 INFO L226 Difference]: Without dead ends: 28716 [2021-03-10 17:37:14,895 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 103.9ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-03-10 17:37:15,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28716 states. [2021-03-10 17:37:15,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28716 to 28716. [2021-03-10 17:37:15,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28716 states, 28715 states have (on average 4.266724708340589) internal successors, (122519), 28715 states have internal predecessors, (122519), 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 17:37:16,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28716 states to 28716 states and 122519 transitions. [2021-03-10 17:37:16,220 INFO L78 Accepts]: Start accepts. Automaton has 28716 states and 122519 transitions. Word has length 47 [2021-03-10 17:37:16,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:37:16,222 INFO L480 AbstractCegarLoop]: Abstraction has 28716 states and 122519 transitions. [2021-03-10 17:37:16,222 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 17:37:16,222 INFO L276 IsEmpty]: Start isEmpty. Operand 28716 states and 122519 transitions. [2021-03-10 17:37:16,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-03-10 17:37:16,254 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:37:16,255 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, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:37:16,255 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 17:37:16,255 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:37:16,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:37:16,258 INFO L82 PathProgramCache]: Analyzing trace with hash -654752332, now seen corresponding path program 1 times [2021-03-10 17:37:16,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:37:16,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104320521] [2021-03-10 17:37:16,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:37:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:37:16,388 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 17:37:16,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104320521] [2021-03-10 17:37:16,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:37:16,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:37:16,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935062491] [2021-03-10 17:37:16,389 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:37:16,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:37:16,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:37:16,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:37:16,391 INFO L87 Difference]: Start difference. First operand 28716 states and 122519 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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 17:37:16,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:37:16,791 INFO L93 Difference]: Finished difference Result 32636 states and 138010 transitions. [2021-03-10 17:37:16,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 17:37:16,792 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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 49 [2021-03-10 17:37:16,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:37:16,876 INFO L225 Difference]: With dead ends: 32636 [2021-03-10 17:37:16,876 INFO L226 Difference]: Without dead ends: 25776 [2021-03-10 17:37:16,877 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 79.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:37:17,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25776 states. [2021-03-10 17:37:17,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25776 to 25776. [2021-03-10 17:37:17,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25776 states, 25775 states have (on average 4.238486905916586) internal successors, (109247), 25775 states have internal predecessors, (109247), 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 17:37:17,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25776 states to 25776 states and 109247 transitions. [2021-03-10 17:37:17,812 INFO L78 Accepts]: Start accepts. Automaton has 25776 states and 109247 transitions. Word has length 49 [2021-03-10 17:37:17,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:37:17,812 INFO L480 AbstractCegarLoop]: Abstraction has 25776 states and 109247 transitions. [2021-03-10 17:37:17,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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 17:37:17,812 INFO L276 IsEmpty]: Start isEmpty. Operand 25776 states and 109247 transitions. [2021-03-10 17:37:17,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-03-10 17:37:17,843 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:37:17,843 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:37:17,843 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 17:37:17,843 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:37:17,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:37:17,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1693057973, now seen corresponding path program 1 times [2021-03-10 17:37:17,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:37:17,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446239903] [2021-03-10 17:37:17,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:37:17,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:37:17,929 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 17:37:17,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446239903] [2021-03-10 17:37:17,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:37:17,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:37:17,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885499491] [2021-03-10 17:37:17,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:37:17,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:37:17,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:37:17,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:37:17,931 INFO L87 Difference]: Start difference. First operand 25776 states and 109247 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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 17:37:18,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:37:18,149 INFO L93 Difference]: Finished difference Result 28576 states and 120152 transitions. [2021-03-10 17:37:18,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 17:37:18,149 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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 51 [2021-03-10 17:37:18,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:37:18,344 INFO L225 Difference]: With dead ends: 28576 [2021-03-10 17:37:18,344 INFO L226 Difference]: Without dead ends: 23676 [2021-03-10 17:37:18,344 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 80.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:37:18,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23676 states. [2021-03-10 17:37:18,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23676 to 23676. [2021-03-10 17:37:18,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23676 states, 23675 states have (on average 4.21909186906019) internal successors, (99887), 23675 states have internal predecessors, (99887), 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 17:37:19,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23676 states to 23676 states and 99887 transitions. [2021-03-10 17:37:19,029 INFO L78 Accepts]: Start accepts. Automaton has 23676 states and 99887 transitions. Word has length 51 [2021-03-10 17:37:19,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:37:19,029 INFO L480 AbstractCegarLoop]: Abstraction has 23676 states and 99887 transitions. [2021-03-10 17:37:19,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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 17:37:19,029 INFO L276 IsEmpty]: Start isEmpty. Operand 23676 states and 99887 transitions. [2021-03-10 17:37:19,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-03-10 17:37:19,066 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:37:19,066 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:37:19,066 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 17:37:19,066 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:37:19,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:37:19,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1520804524, now seen corresponding path program 1 times [2021-03-10 17:37:19,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:37:19,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666550051] [2021-03-10 17:37:19,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:37:19,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:37:19,161 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 17:37:19,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666550051] [2021-03-10 17:37:19,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:37:19,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:37:19,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876279516] [2021-03-10 17:37:19,163 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:37:19,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:37:19,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:37:19,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:37:19,163 INFO L87 Difference]: Start difference. First operand 23676 states and 99887 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 17:37:19,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:37:19,429 INFO L93 Difference]: Finished difference Result 31786 states and 133160 transitions. [2021-03-10 17:37:19,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 17:37:19,430 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2021-03-10 17:37:19,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:37:19,479 INFO L225 Difference]: With dead ends: 31786 [2021-03-10 17:37:19,479 INFO L226 Difference]: Without dead ends: 16281 [2021-03-10 17:37:19,479 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 110.6ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-03-10 17:37:19,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16281 states. [2021-03-10 17:37:19,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16281 to 16281. [2021-03-10 17:37:19,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16281 states, 16280 states have (on average 4.082739557739558) internal successors, (66467), 16280 states have internal predecessors, (66467), 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 17:37:20,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16281 states to 16281 states and 66467 transitions. [2021-03-10 17:37:20,045 INFO L78 Accepts]: Start accepts. Automaton has 16281 states and 66467 transitions. Word has length 53 [2021-03-10 17:37:20,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:37:20,045 INFO L480 AbstractCegarLoop]: Abstraction has 16281 states and 66467 transitions. [2021-03-10 17:37:20,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 17:37:20,045 INFO L276 IsEmpty]: Start isEmpty. Operand 16281 states and 66467 transitions. [2021-03-10 17:37:20,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-03-10 17:37:20,073 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:37:20,073 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:37:20,073 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-10 17:37:20,073 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:37:20,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:37:20,074 INFO L82 PathProgramCache]: Analyzing trace with hash 2126596737, now seen corresponding path program 1 times [2021-03-10 17:37:20,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:37:20,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272804613] [2021-03-10 17:37:20,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:37:20,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:37:20,144 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 17:37:20,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272804613] [2021-03-10 17:37:20,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:37:20,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-10 17:37:20,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343165987] [2021-03-10 17:37:20,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-10 17:37:20,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:37:20,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-10 17:37:20,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-03-10 17:37:20,145 INFO L87 Difference]: Start difference. First operand 16281 states and 66467 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 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 17:37:20,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:37:20,522 INFO L93 Difference]: Finished difference Result 23081 states and 93287 transitions. [2021-03-10 17:37:20,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-10 17:37:20,544 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 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 56 [2021-03-10 17:37:20,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:37:20,574 INFO L225 Difference]: With dead ends: 23081 [2021-03-10 17:37:20,574 INFO L226 Difference]: Without dead ends: 11631 [2021-03-10 17:37:20,575 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 100.8ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:37:20,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11631 states. [2021-03-10 17:37:20,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11631 to 11631. [2021-03-10 17:37:20,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11631 states, 11630 states have (on average 3.9713671539122957) internal successors, (46187), 11630 states have internal predecessors, (46187), 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 17:37:20,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11631 states to 11631 states and 46187 transitions. [2021-03-10 17:37:20,798 INFO L78 Accepts]: Start accepts. Automaton has 11631 states and 46187 transitions. Word has length 56 [2021-03-10 17:37:20,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:37:20,798 INFO L480 AbstractCegarLoop]: Abstraction has 11631 states and 46187 transitions. [2021-03-10 17:37:20,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 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 17:37:20,798 INFO L276 IsEmpty]: Start isEmpty. Operand 11631 states and 46187 transitions. [2021-03-10 17:37:20,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-03-10 17:37:20,816 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:37:20,816 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:37:20,817 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-10 17:37:20,817 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:37:20,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:37:20,817 INFO L82 PathProgramCache]: Analyzing trace with hash 883926243, now seen corresponding path program 1 times [2021-03-10 17:37:20,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:37:20,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270832128] [2021-03-10 17:37:20,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:37:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:37:20,881 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 17:37:20,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270832128] [2021-03-10 17:37:20,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:37:20,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:37:20,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752496236] [2021-03-10 17:37:20,882 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:37:20,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:37:20,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:37:20,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:37:20,883 INFO L87 Difference]: Start difference. First operand 11631 states and 46187 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 17:37:21,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:37:21,046 INFO L93 Difference]: Finished difference Result 16431 states and 65035 transitions. [2021-03-10 17:37:21,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 17:37:21,047 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 57 [2021-03-10 17:37:21,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:37:21,063 INFO L225 Difference]: With dead ends: 16431 [2021-03-10 17:37:21,063 INFO L226 Difference]: Without dead ends: 7011 [2021-03-10 17:37:21,064 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 92.6ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-03-10 17:37:21,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7011 states. [2021-03-10 17:37:21,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7011 to 7011. [2021-03-10 17:37:21,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7011 states, 7010 states have (on average 3.8463623395149784) internal successors, (26963), 7010 states have internal predecessors, (26963), 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 17:37:21,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7011 states to 7011 states and 26963 transitions. [2021-03-10 17:37:21,309 INFO L78 Accepts]: Start accepts. Automaton has 7011 states and 26963 transitions. Word has length 57 [2021-03-10 17:37:21,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:37:21,309 INFO L480 AbstractCegarLoop]: Abstraction has 7011 states and 26963 transitions. [2021-03-10 17:37:21,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 17:37:21,310 INFO L276 IsEmpty]: Start isEmpty. Operand 7011 states and 26963 transitions. [2021-03-10 17:37:21,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-03-10 17:37:21,318 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:37:21,318 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:37:21,318 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-10 17:37:21,318 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:37:21,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:37:21,318 INFO L82 PathProgramCache]: Analyzing trace with hash 138132205, now seen corresponding path program 1 times [2021-03-10 17:37:21,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:37:21,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288418861] [2021-03-10 17:37:21,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:37:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:37:21,377 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 17:37:21,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288418861] [2021-03-10 17:37:21,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:37:21,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:37:21,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673183506] [2021-03-10 17:37:21,378 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:37:21,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:37:21,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:37:21,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:37:21,379 INFO L87 Difference]: Start difference. First operand 7011 states and 26963 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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 17:37:21,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:37:21,485 INFO L93 Difference]: Finished difference Result 6371 states and 24371 transitions. [2021-03-10 17:37:21,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 17:37:21,486 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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 58 [2021-03-10 17:37:21,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:37:21,486 INFO L225 Difference]: With dead ends: 6371 [2021-03-10 17:37:21,486 INFO L226 Difference]: Without dead ends: 0 [2021-03-10 17:37:21,486 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 89.4ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-03-10 17:37:21,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-10 17:37:21,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-10 17:37:21,486 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 17:37:21,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-10 17:37:21,487 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-03-10 17:37:21,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:37:21,487 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-10 17:37:21,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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 17:37:21,487 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-10 17:37:21,487 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-10 17:37:21,487 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-10 17:37:21,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 05:37:21 BasicIcfg [2021-03-10 17:37:21,490 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 17:37:21,491 INFO L168 Benchmark]: Toolchain (without parser) took 18733.12 ms. Allocated memory was 255.9 MB in the beginning and 7.4 GB in the end (delta: 7.2 GB). Free memory was 235.3 MB in the beginning and 6.1 GB in the end (delta: -5.9 GB). Peak memory consumption was 1.3 GB. Max. memory is 16.0 GB. [2021-03-10 17:37:21,493 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.7 MB in the end (delta: 174.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 17:37:21,495 INFO L168 Benchmark]: CACSL2BoogieTranslator took 422.28 ms. Allocated memory was 255.9 MB in the beginning and 364.9 MB in the end (delta: 109.1 MB). Free memory was 234.7 MB in the beginning and 326.8 MB in the end (delta: -92.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-03-10 17:37:21,496 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.16 ms. Allocated memory is still 364.9 MB. Free memory was 326.8 MB in the beginning and 324.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 17:37:21,499 INFO L168 Benchmark]: Boogie Preprocessor took 28.91 ms. Allocated memory is still 364.9 MB. Free memory was 324.7 MB in the beginning and 323.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 17:37:21,499 INFO L168 Benchmark]: RCFGBuilder took 339.94 ms. Allocated memory is still 364.9 MB. Free memory was 323.3 MB in the beginning and 336.3 MB in the end (delta: -13.0 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.0 GB. [2021-03-10 17:37:21,502 INFO L168 Benchmark]: TraceAbstraction took 17888.12 ms. Allocated memory was 364.9 MB in the beginning and 7.4 GB in the end (delta: 7.1 GB). Free memory was 336.3 MB in the beginning and 6.1 GB in the end (delta: -5.7 GB). Peak memory consumption was 1.3 GB. Max. memory is 16.0 GB. [2021-03-10 17:37:21,506 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.7 MB in the end (delta: 174.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 422.28 ms. Allocated memory was 255.9 MB in the beginning and 364.9 MB in the end (delta: 109.1 MB). Free memory was 234.7 MB in the beginning and 326.8 MB in the end (delta: -92.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 46.16 ms. Allocated memory is still 364.9 MB. Free memory was 326.8 MB in the beginning and 324.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.91 ms. Allocated memory is still 364.9 MB. Free memory was 324.7 MB in the beginning and 323.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 339.94 ms. Allocated memory is still 364.9 MB. Free memory was 323.3 MB in the beginning and 336.3 MB in the end (delta: -13.0 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 17888.12 ms. Allocated memory was 364.9 MB in the beginning and 7.4 GB in the end (delta: 7.1 GB). Free memory was 336.3 MB in the beginning and 6.1 GB in the end (delta: -5.7 GB). Peak memory consumption was 1.3 GB. 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 5 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17820.8ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 323.2ms, AutomataDifference: 3420.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9233.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 860 SDtfs, 1350 SDslu, 2784 SDs, 0 SdLazy, 191 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 138.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 657.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=66446occurred in iteration=0, InterpolantAutomatonStates: 69, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 3969.1ms AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 19.7ms SsaConstructionTime, 134.0ms SatisfiabilityAnalysisTime, 586.8ms InterpolantComputationTime, 371 NumberOfCodeBlocks, 371 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 364 ConstructedInterpolants, 0 QuantifiedInterpolants, 1546 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...